Get the ePub FREE this month when you buy a paperback that's in Amazon Matchbook!
I
IaaS Infrastructure as a Service
I&A Identification and Authentication
I&W Indications and Warning
I/O input/output, information operations
I3P Institute for Information Infrastructure Protection
IA Information Assurance
IA-64 64-bit Intel Itanium architecture
IaaS Infrastructure-as-a Service
IAB Internet Architecture Board, Interagency Advisory Board
IAC Information Assurance Component
IACE Information Assurance Collaborative Environment
IACE-S Information Assurance Collaborative Environment-SIPRNet
IACIS® International Association of Computer Investigative Specialists
IACS Industrial Automation and Control Systems
IAD Information Assurance Directorate
IAFC International Association of Fire Chiefs
IAFIS Integrated Automated Fingerprint Identification System
IAIP Information Analysis and Infrastructure Protection
IAM Information Assurance Manager, Information Assessment Methodology
IANA Internet Assigned Number Authority
IAO Information Assurance Officer
IASAE Information Assurance System Architects and Engineer
IASE Information Assurance Support Environment
IAT Information Assurance Technical
IATAC Information Assurance Technology Analysis Center
IATF Information Assurance Technical Framework
IATO Interim Approval to Operate, Interim Authorization to Operate
IATT Interim Approval to Test
IAVA Information Assurance Vulnerability Alert
IAVB Information Assurance Vulnerability Bulletin
IAVM Information Assurance Vulnerability Management
IB Implementation Baseline
IBAC Identity Based Access Control
IBC Iterated Block Cipher
IbC Internet-based Capabilities
IBE Identity-Based Encryption
IBGP Internal Border Gateway Protocol
IBMJSSE IBM Java Secure Sockets Extension
IBSS Interdependent Basic Service Set
IC Intelligence Community, incident commander
IC3 Internet Crime Complaint Center
ICAMP Incident Cost Analysis and Modeling Project
ICAMSC Identity, Credential, and Access Management Subcommittee
ICANN Internet Corporation for Assigned Names and Numbers
ICC Integrated Circuit Card
ICCC Internet Crime Complaint Center
ICCD Integrated Circuit Card Device
ICCID Integrated Circuit Card Identification
ICCP Inter-control Center Communications Protocol
ICD Intelligence Community Directive
ICF Internet Connection Firewall
ICMC International Cryptographic Module Conference
ICMP Internet Control Message Protocol
ICMPv4 Internet Control Message Protocol for IPv4
ICMPv6 Internet Control Message Protocol for IPv6
ICP Internet Caching Protocol
ICS Industrial Control System
ICSA International Computer Security Association
ICSEA International Conference on Software Engineering Advances
ICST International Conference on Software Testing, Verification and Validation
ICSTW International Conference on Software Testing, Verification and Validation Workshops
ICT Information and Communications Technology
ICV Integrity Check Value
ID Identifier
ID-10-T Hackerspeak “IDIOT”
IDA Institute for Defense Analyses
IdAM Identity and Access Management
IDART™ Information Design Assurance Red Team
IDE Integrated Drive Electronics, integrated development environment
IDEA International Data Encryption Algorithm
IDEF Identity Ecosystem Framework
iDEN Integrated Digital Enhanced Network
IDESG Identity Ecosystem Steering Group
ID-FF Identity Federation Framework
IDLS Instructional Development Learning Systems
IDMEF Intrusion Detection Message Exchange Format
IDMS Identity Management System
IdP Identity Provider
IdP STS Identity Provider Security Token Service
IDP Internet Death Penalty
IDPS Intrusion Detection and Prevention System
IDS Intrusion Detection Systems
ID-SIS Identity Service Interface Specifications
ID-WSF IDentity Web Service Framework
ID-WSF DST Identity Web Services Framework Data Services Template
IE Internet Explorer
IEC International Electrotechnical Commission
IED Intelligent Electronic Device
IEEE Institute of Electrical and Electronics Engineers
IEEE-SA IEEE Standards Association
iEMS RADiFlow ICS/SCADA router configuration management software
IESG Internet Engineering Steering Group
IETF Internet Engineering Task Force
IETF BCP Internet Engineering Task Force Best Current Practice
IETF RFC Internet Engineering Task Force Request for Comments
IFAC International Federation of Accountants
iFACTS Interim Future Area Control Tools Support
IFIP International Federation for Information Processing
IFTTT If This Then That
IG Implementation Guidance
igamc Incomplete Gamma Function
IGMP Internet Group Management Protocol
IGMPv3 Internet Group Management Protocol version 3
IGP Interior Gateway Protocol
IHE Integrating the Healthcare Enterprise
IHS Indian Health Service
IIC Industrial Internet Consortium
IICSWG Interagency International Cybersecurity Standardization Working Group
IID Independent and Identically Distributed
IIHI Individually Identifiable Health Information
IIoT Industrial Internet of Things
IIP Internet Infrastructure Protection
IIS Internet Information Server
IK Integrity Key
IKE Internet Key Exchange
ILCM Integrated Life Cycle Management
ILK Intermediate Link Key
ILTK Intermediate Long Term Key
IM Instant Messaging; Identity Manager
IMF Impossible Missions Force
IMAP Internet Message Access Protocol
IMDS Integrated Maintenance Data System
IMEI International Mobile Station Equipment Identity
IMETI International Multi-Conference on Engineering and Technology Innovation
IMR Integrity Measurement Register
IMS IP Multimedia Subsystem
IMSI International Mobile Subscriber Identity
IMT Information Management Technology
IN Internet
INCITS InterNational Committee for Information Technology Standards
INCOSE International Council on Systems Engineering
INFOCON Information Condition
INFORMS Institute for Operations Research and the Management Sciences
INFOSEC Information Systems Security
INK Inner Key
INL Idaho National Laboratory
I-NOSC Integrated NOSC
Intel TXT Intel Trusted Execution Technology
Intel VT Intel Virtualization Technology
INWT Intermediate Network Warfare Training
IO Information Operations
I/O Input/Output
IoC Inversion of Control
IOC Indicators of Compromise
IODEF Incident Object Description Format
IoHT Internet of (Hackable) Things
iOS iPhone Operating System
IOS Internetwork Operating System
IoT Internet of Things
IOU Investor-Owned Utilities
IP Internet Protocol, Information Protection
IPA initial privacy assessment, Information Protection Alerts
IPAWS Integrated Public Alert and Warning System
IPB intelligence preparation of the battlefield (DOD)
IPC Industrial Personal Computer
IPComp IP Payload Compression Protocol
IPD Initial Public Draft
IPDC Internet Protocol Device Control
IPN Installation Processing Node
IPng Internet Protocol Next Generation
IPP Independent Power Producer
IPR Intellectual Property Rights
IPS Intrusion Prevention System(s)
IPsec Internet Protocol Security
IPsec-WIT IPsec Web Based Interoperability Tester
IPT Integrated Process Teams
IPv4 Internet Protocol version 4
IPv6 Internet Protocol version 6
IPX Internet Packet Exchange
IQF Individual Qualification Folder
IQT Initial Qualification Training
IR Incident Response, Identity Root, Interagency Report, infrared
IRB Institutional Review Board
IRC Internet Relay Chat, information-related capabilities (DOD)
IrDA® Infra-Red Data Association
IREX Iris Exchange
IRK Identity Resolving Key
IRM Information Resources Management
IRQ Interrupt Request Line
IRS Internal Revenue Service, Incident Reporting System
IRTF Internet Research Task Force
ISA Interconnection Security Agreement, International Society of Automation
ISAC Information Sharing and Analysis Center
ISACA Information Systems Audit and Control Association
ISAKMP Internet Security Association and Key Management Protocol
ISAO Information Sharing and Analysis Organization
ISAP Information Security Automation Program
ISAPI Internet Server Application Programming Interface
ISATAP Intra-site Automatic Tunnel Addressing Protocol
ISC Information System Component
ISC2 International Information Systems Security Certification Consortium
ISCM Information Security Continuous Monitoring
ISCM-TN Information Security Continuous Monitoring Target Network
ISCP Information System Contingency Plan
iSCSI Internet Small Computer System Interface
ISD Instructional System Design, Instructional System Development
ISDN Integrated Services Digital Network
ISE Information Sharing Environment, Identity Services Engine
ISF Information Security Forum
ISID Industrial Security Incident Database
iSIM Industrial Service Management Tool
ISIMC Information Security and Identity Management Committee
IS-IS Intermediate System to Intermediate System
ISSLOB Information Systems Security Line of Business
ISM Industrial, Scientific, and Medical
ISMS Information Security Management System
ISN Installation Services Node
ISO International Organization for Standardization, Independent System Operator, ISO—Information System Owner
ISOO Information Security Oversight Office
ISORC International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing
ISP Internet Service Provider
ISPAB Information Security and Privacy Advisory Board
ISR intelligence, surveillance, & reconnaissance (DOD)
ISS Internet Security Systems
ISSE Information Systems Security Engineer
ISSEA International Systems Security Engineering Association
ISSM Information Systems Security Manager
ISSO Information System Security Officer
ISSPM Information Systems Security Program Manager
ISU Information System User
ISV Independent Software Vendor
IT Information Technology
ITAA Information Technology Association of America
ITAM Information Technology Asset Management
ITCC Information Technology Commodity Council
ITF Interrogator Talks First
ITGEB IT Governance Executive Board
ITGI IT Governance Institute
ITIL Information Technology Infrastructure Library
ITL Information Technology Laboratory
ITS Intrusion Tolerant Systems, Information Transport System
ITS JPO Intelligent Transportation System Joint Program Office
ITSM Information Technology Service Management
ITU International Telecommunications Union
ITU-T International Telecommunications Union – Telecommunications Sector
ITU-TSS International Telecommunications Union – Telecommunications System
IUT Implementation Under Test
IV Initialization Vector
IVR Interactive Voice Response
IV&V Independent Verification & Validation
IVA Independent Validation Authority
IVAs Intelligent Virtual Assistants
IW Information Warfare
IW/IO Information Warfare/Information Operations
IWCE International Wireless Communications Expo
IWCT International Workshop on Combinatorial Testing
IWG Interagency Working Group
IXP Internet Exchange Point
J
J2EE Java 2 Platform, Enterprise Edition
JAD Joint Application Development
Java EE Java Platform, Enterprise Edition
JAXR Java API for XML Registries
JCC Joint Cyberspace Center
JFC joint force commander (DOD)
JFFS2 Journaling Flash File System, Version 2
JFT Joint Force Training
JID Jabber IDs
JIE Joint Enterprise Environment (DISA)
JIMS Joint Incident Management System
JIT just-in-time
JITC Joint Interoperability Test Command
JNI Java Native Interface
JOSE JSON Object Signing and Encryption
JP Joint Publication (DOD)
JPAS Joint Personnel Adjudication System
JPEG Joint Photographic Experts Group
JQS Job Qualification Standard
JRE Java Runtime Environment
JSM Java Security Manager
JSSE Java Secure Socket Extension
JSON JavaScript Object Notation
JSP Java Server Page
JTAG Joint Test Action Group
JTC1 Joint Technical Committee 1
JTF Joint Task Force
JTFTI Joint Task Force Transformation Initiative
JVM Java Virtual Machine
JWICS Joint Worldwide Intelligence Communications System
JWT JSON Web Token
K
KAK Key-Auto-Key
KB Kilobyte
Kbps Kilobit per second
KBA Knowledge-Based Authentication
KBKDF Key-Based Key Derivation functions
KBP Knowledge-Based Proofing
KBV Knowledge-Based Verification
KDC Key Distribution Center
KDF Key Derivation Function
KDM Knowledge Discovery Metamodel
KEK Key-Encryption-Key
KG Key Generator
KGD Key Generation and Distribution
kHz Kilohertz
KINK Kerberized Internet Negotiation of Keys
KMAC Keccak Message Authentication Code
KMI Key Management Infrastructure
KMIP Key Management Interoperability Protocol
KOA KMI Operating Account
KPC KMI Protected Channel
KSA Knowledge, Skills, and Abilities
KSG Key Stream Generator
KSK key signing key
Krack Key Reinstallation AttaCK
KVM Kernel-Based Virtual Machine; Keyboard, video, and mouse
L
L2CAP Logical Link Control and Adaptation Protocol
L2F Layer 2 Forwarding
L2TP Layer 2 Tunneling Protocol
L2VPN Layer 2 VPN
L3VPN Layer 3 VPN
LACNIC Latin American and Caribbean IP Address Regional Registry
LACS Logical Access Control System
L.A.W.S. Lethal Autonomous Weapons Systems
LAN Local Area Network
LB Lower Bound
LCC Life-Cycle Cost
LCD Liquid Crystal Display
LCP Link Control Protocol
LDA Local Delivery Agent
LDAP Lightweight Directory Access Protocol
LDAPS Lightweight Directory Access Protocol (Secure)
LE Low Energy, Law Enforcement
LED Light Emitting Diode
Leet Hackers alternative alphabet. Also written as 133t or l337
LEL Lower Explosive Limit
LEO Law Enforcement Officer
LEP List of Effective Pages
LF Low Frequency
LFE Large Force Exercise
LFSR Linear Feedback Shift Register
LFW Labeled Faces in the Wild
Li-Fi Wireless data streaming using LED lights to transmit information
LIR Local Internet Registry
LIS Low-Impact System
LISP Locator/ID Separation Protocol
LKM Loadable Kernel Module
LLA link-local addressing
LLP Link Layer Protocol
LM LAN Manager
LMD/KP Local Management Device/Key Processor
LMP Link Manager Protocol
LMR Land Mobile Radio
LMS Load Management System
LND Last Numbers Dialed
LOA Level of Assurance
LoC Lines of Code
LOC Location
LOPA Layer of Protection Analysis
LoRa Alliance Long Range Alliance
LOS Line-of-Sight
LP Learning Point
LPAR Logical Partition
LPSV Low Pressure Safety Valve
LRA Local Registration Authority
LRC Longitudinal Redundancy Code
LRS Longest Repeated Substring
LSAP Link Service Access Point
LSB Least Significant Bit
LSI Large-Scale Integration
LSM Loadable Software Module
LTC Load Tap Changer
LTE Long Term Evolution
LTK Long-Term Key
LTS Long-Term Support
LUA limited user account
LVPSV Low and Vacuum Pressure Safety Valve
LWM2M DM Lightweight M2M Device Management
LXC Linux Container
M
m Meter
M2 Direct communication between devices
M2M Machine-to-Machine
M3AAWG Messaging Malware Mobile Anti-Abuse Working Group
MA Maintenance
MAA Measurement Assessment Authority
MaaS Malware-as-a-Service
MAC Mandatory Access Control; Message Authentication Code; Mission Assurance Category; Media Access Control; Modification, Access, and Creation
MACsec Media Access Control Security
MaDIoT Manipulation of Demand Internet of Things
MAE1 Mutual Aid Engine
MAEC™ Malware Attribute Enumeration and Characterization (TM The MITRE Corporation)
MAF multi-mode authentication framework
MAG Microsoft Azure Government
MAM Mobile Application Management
MAN Metropolitan Area Network
MANET Mobile Ad-hoc Network
MAO Maximum Allowable Outage
MAPS Mail Abuse Prevention System
MAV Micro Aerial Vehicle
MB Megabyte
MBAS Mutual Box Alarm System
MBD model-based design
Mbps Megabits Per Second
MBR Master Boot Record
MBSA Microsoft Baseline Security Analyzer
MCPTT Mission Critical Push-To-Talk
MD Message Digest
MD5 Message Digest 5
MDC Mission Data Card
MDCX Modify Connection
MDDS Medical Device Data Systems
MDM Mobile Device Management
MDMP military decision-making process (DOD)
MDMS Meter Data Management System
MDS Mobile Device Security
MDT Mobile Data Terminal
ME Mobile Equipment
MED Multi-Exit Discriminator
MEF Mission Essential Functions
MEID Mobile Equipment Identifier
MEK Media Encryption Key
MEL Master Equipment List
MEMS microelectromechanical system
MEP message exchange pattern
MES manufacturing execution system
MET Mission Essential Tasks
MFA Multi-Factor Authentication
MFD Multi-Function Device
MFQ Master Question File
MFUA Mission/Functional Unique Application
MGC Management Client
MGCP Media Gateway Control Protocol
MGN Medical-Grade Network
MHz Megahertz
MIB Management Information Base
MIC Message Integrity Check, Message Integrity Code, mandatory integrity control
MICT Management Internal Control Toolset
MID Mobile Internet Devices
MIKEY Multimedia Internet KEYing
MILDEC Military Deception
MILE Managed Incident Lightweight Exchange
MilPDS Military Personnel Data System
MIME Multipurpose Internet Mail Extensions
MIMO Multiple Input, Multiple Output
min minute
MIN mobile identification number
Mini SD mini secure digital
MINEX Minutia Exchange
MIP Modules-In-Process
MIPv4 Mobile IPv4
MIPv6 Mobile IPv6
MIS Moderate-Impact System
MISREP Mission Report
MISTI MIS Training Institute
MIT Massachusetts Institute of Technology
MitB Man-in-the-Browser Attack
MitM Man-in-the-Middle Attack
MK Master Key
ML MetaLangauge
MLD Multicast Listener Discovery
MLDv1 Multicast Listener Discovery version 1
MLDv2 Multicast Listener Discovery version 2
MLE Measured Launch Environment
MLS Multiple Levels of Security; Multilevel Security
MMC Multi-Media Card, Microsoft Management Console
MMCmobile MultiMediaCard Mobile
MME Mobility Management Entity
MMO Monitoring Management Operator
MMS Multimedia Messaging Service
MMT Multi-Block Message Test
MN Mobile Node
MNO Mobile Network Operator
MO Magneto Optical
MOA memorandum of agreement
MOB Managed Object Browser
MOBIKE IKEv2 Mobility and Multihoming Protocol
MODP Modular Exponential Diffie-Hellman Group
MOU/A Memorandum of Understanding/Agreement
MOSS MIME Object Security Services
MOVS Modes of Operation Validation System
MP Media Protection, Metapolicy
MPA Mobile Prefix Advertisement
MPCN Manpower Position Control Number
MPC Mission Planning Cell
MPEG Moving Picture Experts Group
MPES Manpower Programming and Execution System
MPPE Microsoft Point-to-Point Encryption
MPLS Multiprotocol Label Switching
MPS Mobile Prefix Solicitation
MPT Mission Planning Team
MPTO Methods and Procedures Technical Order
MQT Mission Qualification Training
MQTT Message Queueing Telemetry Transport
MQV Menezes-Qu-Vanstone algorithm
MR Mission Ready
MRI Magnetic Resonance Imaging
MRT Machine Readable Table
MRTD Machine Readable Travel Document
MS Mobile Subscriber, Microsoft
MSA Mail Submission Agent
MSB Most Significant Bit
MSC Mobile Switching Center
MSCUID Legacy Identifier Government Smart Card Interoperability Specifications
MS-CHAP Microsoft Challenge-Handshake Authentication Protocol
MS-DOS Microsoft Disk Operating System
MSDP Multi-source Discovery Protocol
MSK Master Session Key
MSEC Multicast Security
MSEL Master Scenario Events List
MSIL Microsoft Intermediate Language
MSISDN Mobile Subscriber Integrated Services Digital Network
MSK Master Session Key
MSKB Microsoft Knowledge Base
MSL Multiple Security Levels, Master Station Log
MSN Mission Qualification
MS SQL Microsoft Structured Query Language
MSS Maximum Segment Size
MSSP Managed Security Services Provider
MST Minimum Spanning Tree
MSWG Metadata Standards Working Group
MT Metamorphic Testing
MTA Mail Transfer Agent, Mission-task-asset
MTBF Mean Time Between Failure
MTC Mobile Threat Catalogue
MTD Maximum Tolerable Downtime, Moving Target Defense
MTF Medical Treatment Facilities
MTIPS Managed Trusted Internet Protocol Services
MTM Mobile Trusted Module
MTO Maintenance Tasking Order
MTP Mobile Threat Protection
MTTF Mean Time To Failure
MTU Maximum Transmission Unit, master telemetry unit, master terminal unit
MUA Mail User Agent
MUD Manufacturers Usage Description
MUD File Manufacturers Usage Description File
MVNO Mobile Virtual Network Operator
mW Milliwatt
MW Megawatt
MWR Morale, Welfare, and Recreation
MX Mail Exchanger
N
N/A Not Applicable
NA Neighbor Advertisement
NAC Network Access Control, National Agency Check
NACI National Agency Check with Inquiries
NAK Not acknowledged
NaN Not a Number
NAN Neighborhood Area Network
NANOG North American Network Operators Group
NAP Network Access Protection, Network Access Point
NAPT Network Address and Port Translation
NARA National Archives and Records Administration
NAS Network-Attached Storage, Non-Access Stratum
NASA National Aeronautics and Space Administration
NASPI North American Synchrophasor Initiative
NASPO North American Security Products Organization
NAT Network Address Translation
NATS National Air Traffic Service
NAT-PT network address translation—protocol translation
NAT-T Network Address Translation Traversal
NAVWAR Navigation Warfare
NBA Network Behavior Analysis
NBAD Network Behavior Anomaly Detection
N-BMC Non-Basic Mission Capable
NC Non-component, Nonce, Non-current
NCC FSWG NIST Cloud Computing Forensic Science Working Group
NCCIC National Cybersecurity and Communications Integration Center
NCCoE National Cybersecurity Center of Excellence
NCEP National Cybersecurity Excellence Partner
NCES NetCentric Enterprise Services
NCHC National Criminal History Check
NCIC National Crime Information Center
NCP National Checklist Program
NCRIC Northern California Regional Intelligence Center
NCSD National Cyber Security Division
NCSI NIST National Center for Standards and Certification Information
ND Neighbor Discovery
NDA Non-Disclosure Agreement
NDAC nondiscretionary access control
NDE Non-Destructive Examination
NDI Non-Developmental Item
NDM naturalistic decision making
NDS/IP Network Domain Security / Internet Protocol
NDT Non-Destructive Testing
NE Network Environment
NEA Non-Enterprise Activated
NEF National Essential Functions
NeHC National eHealth Collaborative
NEMSIS National EMS Information System
NENA National Emergency Number Association
NERC North American Electric Reliability Corporation
NESAG Network Equipment Security Assurance Group
NetBEUI NetBIOS Extended User Interface
NetBIOS Network Basic Input/Output System
NetBT NetBIOS over TCP/IP
NetD Network Defense
NetOps Network Operations
NFAT Network Forensic Analysis Tool
NFC Near Field Communication
NFIQ NIST Fingerprint Image Quality
NFIRS National Fire Incident Reporting System
NFO Nonfederal Organization
N-FORS National Fire Operations Reporting System
NFPA National Fire Protection Association
NFS network file system, Network File Sharing
NFV Network Function Virtualization
NG9-1-1 Next generation 9-1-1
NGAC Next Generation Access Control
NGAC-FA Next Generation Access Control Functional Architecture
NGAC-GOADS Next Generation Access Control Generic Operations and Abstract Data Structures
NGAC-IRPADS Next Generation Access Control- Implementation Requirements, Protocols and API Definitions
NGO Non-Government Organization
NH Next Header, Next Hop
NHIN Nationwide Health Information Network
NHTSA National Highway Traffic Safety Administration
NIAC National Infrastructure Advisory Council
NIAP National Information Assurance Partnership
NIC Network Interface Card
NICC National Infrastructure Coordinating Center
NICE National Initiative for Cybersecurity Education
NICTA National ICT Australia
NIEF National Identity Exchange Federation
NIEM National Information Exchange Model
NIH National Institutes of Health
NIJ National Institute of Justice
NIMS National Incident Management System
NIP National Intelligence Program
NIPC National Infrastructure Protection Center
NIPP National Infrastructure Protection Plan
NIPRNet Non-classified Internet Protocol Router Network
NIS Network Information Service
NISAC National Infrastructure Simulation and Analysis Center
NISCC National Infrastructure Security Co-ordination Centre
NISPOM National Industrial Security Program Operating Manual
NIST National Institute of Standards and Technology
NISTIR National Institute of Standards and Technology Interagency or Internal Report
NIST SP National Institute of Standards and Technology Special Publication
NIT Network Investigative Technique
NITRD Networking and Information Technology Research and Development
NLCC National Leadership Command Capability
NLECTC-NE National Law Enforcement and Corrections Technology Center–North East
NLOS Non-Line-of-Sight
NLP Natural Language Policy
NLT No Later Than
NLZ No-Lone Zone
NM Network Management
NMAP Networked Messaging Application Protocol
NMR Non-Mission Ready
NOAA National Oceanic and Atmospheric Administration
NOFORN Not Releasable to Foreign Nationals
NOPP Notice of Privacy Practices
NOS Network Operations Squadron
NOSC Network Operations & Security Center
NOSS Network Operations and Security Squadron
NoT Network of Things
NPD Network Protection Device
NPE Non-Person Entity
NPIVP NIST Personal Identity Verification Program
NPO National Program Office
NPPI Non-Public Personal Information
NPSBN Nationwide Public Safety Broadband Network
NPSTC National Public Safety Telecommunications Council
NRBG Non-deterministic Random Bit Generator
NRECA National Rural Electric Cooperative Association
NS Neighbor Solicitation; Name Server
NSA National Security Agency
NSAPI Netscape Server Application Programming Interface
NSC National Security Council
NSC’s Cyber National Security Council’s Cyber Interagency Policy Committee
IPC
NSCI National Strategic Computing Initiative
NSD Network Server Daemon
NSEC Next Secure
NSEC3 Hashed Next Secure
NS/EP National Security and Emergency Preparedness
NSEPTS National Security Emergency Preparedness Telecommunications Services
NSF National Science Foundation
NSI National Security Information
NSPD National Security Presidential Directive
NSRL National Software Reference Library
NSS Network Security Services
NSTB National SCADA Test Bed
NSTAC National Security Telecommunications Advisory Committee
NSTIC National Strategy for Trusted Identities in Cyberspace
NSTISSC National Security Telecommunications and Information Systems Security Committee
NSTISSI National Security Telecommunications and Information System Security Instruction
NSTISSP National Security Telecommunications and Information Systems Security Policy
NTFS New Technology File System
NTFY Notify
NTI New Technologies Inc.
NTIA National Telecommunications and Information Administration
NTLM NT LAN Manager
NTP Network Time Protocol, Notice to Proceed
NTPv6 Network Time Protocol for IPv6
NTTAA National Technology Transfer and Advancement Act
NUD Neighbor Unreachability Detection
NVD National Vulnerability Database
NVLAP National Voluntary Laboratory Accreditation Program
NVM Non-Volatile Memory
NW3C National White Collar Crime Center
NX no execute
NYU New York University
O
OAL Original Equipment Manufacture Adaptation Layer
OAEP Optimal Asymmetric Encryption Padding
OAGi Open Applications Group
OAGIS Open Applications Group Integration Specification
OAM Operational and Access Management
OASISTM Organization for the Advancement of Structured Information Standards
OAuth Open Authorization
OBDD Ordered Binary Decision Diagram
ObjSoD Object-based Separation of Duties
OCC On-Card biometric Comparison, Open Cloud Consortium, Office of the Comptroller of the Currency
OCCI Open Cloud Computing Interface
OCF Open Connectivity Foundation
OCIL Open Checklist Interactive Language
OCIO Office of the Chief Information Officer
OCO offensive cyberspace operations (DOD)
OCONUS Outside the Continental U.S.
OCSP Online Certificate Status Protocol
ODBC Open Database Connectivity
ODF Open Document Format
ODNI Office of the Director of National Intelligence
OE Operating Environment
OECD Organization for Economic Cooperation and Development
OEM Original Equipment Manufacturer
OEP Occupant Emergency Plan
OESS Office of E-Health Standards and Services
OET Office of Engineering and Technology
OFB Output Feedback
OFDM Orthogonal Frequency Division Multiplexing
OG Operations Group
OGC Open Geospatial Consortium
OG/CC Operations Group Commander
OGF Open Grid Forum
OGIS Office of Government Information Services
OGSA Open Grid Services Architecture
OGV Operations Group Standardization/Evaluation
OHA Open Handset Alliance
OID Object Identifier
OIDC OpenID Connect
OIG Office of Inspector General
OIMO Organization Identity Management Official
OIS Office of Information Security
OISM Office of Information Systems Management
OJE On-the-Job Evaluation
OJT On-the-Job Training
OLA Operating-Level Agreement
OLE object linking and embedding
OMA Open Mobile Alliance
OMB Office of Management and Budget
OMG Object Management Group, “Oh, My God”
OMS Outage Management System
ONC Office of the National Coordinator
ONS Object Naming Service
OOB Out of Band
OOK On-Off Keying
OOXML Office Open XML
OPC OLE for Process Control, optical particle counters
OPE operational preparation of the environment
OpenFog RA OpenFog Reference Architecture
OpenPGP Open Pretty Good Privacy
OpenVPN Open-source software application that implements virtual private network
OPEX Operating Experience
OPM Office of Personnel Management
OPNET Optimized Network Engineering Tools
OPORD Operation Order
OPR Office of Primary Responsibility
OPSEC Operations Security
OpSoD Operational Separation of Duties
ORA Organizational Registration Authority
ORB Open Relay Blacklist, Operational Review Board
ORCON Originator Controlled
OS Operating System
OSCAL Open Security Controls Assessment Language
OSCI Operating System Command Injection
OSCP Online Certificate Status Protocol
OSD Office of the Secretary of Defense
OSHA Occupation Safety and Health Administration
OSI Open Systems Interconnect
OSPF Open Shortest Path First
OSPFv2 Open Shortest Path First version 2 (for IPv4)
OSPFv3 Open Shortest Path First version 3 (for IPv6)
OSS open source software
OSSTMM Open Source Security Testing Methodology Manual
OSR2 OEM Service Release 2
OSVDB Open Source Vulnerability Database
OTA Over the Air, Open Travel Alliance
OTAR Over-The-Air Rekeying
OTP One-Time Password
OTSP Office of Science and Technology Policy
O-TTPS Open Trusted Technology Provider™ Standard
OU organizational unit
OUI Organizationally Unique Identifier
OVAL Open Vulnerability and Assessment Language
OVF Open Virtualization Format
OWA Outlook Web Access
OWASP Open Web Application Security Project
OWL Web Ontology Language
OWL-S Web Ontology Language for Services
OZ Operations Zone
P
P1 First parameter of a card command
P2 Second parameter of a card command
P2P peer-to-peer
P3P Platform for Privacy Preferences Project
PAA Policy Approving Authority, Principal Accrediting Authority
PaaS Platform as a Service
PAC Privilege Attribute Certificate, Protected Access Credential
PACS Physical Access Control System
PAD Presentation Attack Detection
PA-DSS Payment Application Data Security Standard
PAM Privileged Account Management
PAN Personal Area Network; Primary Account Number
PAN CVC2 Card Validation Code 2 (MasterCard payment cards)
PANA Protocol for carrying Authentication for Network Access
PAOS Reverse HTTP Binding for SOAP
PAP Password Authentication Protocol, Priority Action Plan, policy access point
PAS publicly available specification
PAT Port Address Translation
PBA Pre-Boot Authentication
PBAC Policy-Based Access Control
PBCC Packet Binary Convolutional Coding
PBE Pre-Boot Environment
PBED Planning, Briefing, Execution, and Debriefing
PBNM Policy Based Network Management
PBX Private Branch Exchange
PC Pressure Controller
PCA Policy Certification Authority
PCAP Packet Capture
PCC Personnel Category Code
PCI Payment Card Industry, PIV Card Issuer, Peripheral Component Interconnect
PCIe Peripheral Component Interconnect Express
PCI-DSS Payment Card Industry Data Security Standard
PCLOB Privacy and Civil Liberties Oversight Board
PCMCIA Personal Computer Memory Card International Association
PCN process control network
PCP IP Payload Compression Protocol
PCR Endpoint Configuration Register, Platform Configuration Register
PCRF Policy and Charging Rules Function
PC/SC Personal Computer/Smart Card
PCS Process Control System
PCSF Process Control System Forum
PCSRF Process Control Security Requirements Forum
PD Policy Directive, Position Description
PDA Personal Digital Assistant
PDCP Packet Data Convergence Protocol
pdd Palm data dump/duplicate disk
PDD Presidential Decision Directive
PDF Portable Document Format, Probability Density Function
PDN Packet Data Network
PDP Policy Decision Point
PDS Protected Distribution System, Personal Data Store
PE Physical and Environmental Security, Protocol Encryption
PEAP Protected Extensible Authentication Protocol
PEC Program Element Code
PED PIN entry device; Portable Electronic Device
PEM Privacy Enhanced Mail
PEP Policy Enforcement Point, Privacy Engineering Program
PERMIS PrivilEge and Role Management Infrastructure Standards
PEV Plug-In Electric Vehicle
PFF Palm File Format
PFS Perfect Forward Secrecy
PGP Pretty Good Privacy
PGP/OpenPGP Pretty Good Privacy
P-GW Packet Gateway
PHASER Physiological Health Assessment System for Emergency Responders
PHB Pointy-Haired Boss
PHEV Plug-In Hybrid Electric Vehicle
PHI Personal Health Information, Protected Health Information
PHM Prognostics and Health Management
PHP PHP Hypertext Preprocessor
PHR Personal Health Record
PHY Physical Layer, Physical Access
PI Pandemic Influenza
PI2 Potentially Identifiable Personal Information
PIA Privacy Impact Assessment
PICS Protocol Implementation Conformance Statement
PICS™ Platform for Internet Content Selection
PID Proportional Integral Derivative
PII Personally Identifiable Information
PIM Personal Information Management
PIMR Privacy Integrity Measurement Register
PIM-SM Protocol Independent Multicast—Sparse Mode
PIN Personal Identification Number
PIP Policy Information Point
PIR Public Internet Registry
PIT Platform Information Technology
PIV Personal Identity Verification
PIV-I PIV-Interoperable
PIV Card Personal Identity Verification Card
PIV RA Personal Identity Verification Registrar
PIX Proprietary Identifier Extension
PKCS Public Key Cryptography Standard
PKE Public Key Enabling
PKI Public Key Infrastructure
PKI-AUTH Authentication with the PIV Authentication Certificate Credential
PKI-CAK Authentication with the Card Authentication Certificate Credential
PKIX Public Key Infrastructure X.509
PKM Privacy Key Management
PKMv1 Privacy Key Management Protocol version 1
PKMv2 Privacy Key Management Protocol version 2
P.L. Public Law
PL Planning, Public Law
PLC programmable logic controller
PM Project Management
PMA Policy Management Authority
PMBOK® Project Management Body of Knowledge®
PML Physical Measurement Laboratory
PLC Programmable Logic Controller
PMEF Primary Mission Essential Functions
PMI Preventative Maintenance Inspection
PMK Pairwise Master Key
PMKSA Pairwise Master Key Security Association
PMP point-to-multipoint
PMTU Path Maximum Transmission Unit
PMU Phasor Measurement Unit
PN Packet Number
pNIC Physical Network Interface Card
PNG Portable Network Graphics
PoA Point of Attachment
POA&M Plan of Action and Milestones
POC Point of Contact
PoE Power over Ethernet
POI Point of Interaction
POL Primary Operating Location
POMS Proactive Obsolescence Management System
POP Post Office Protocol
PoP Period of Performance
POP3 Post Office Protocol v3
POPRV Pilot-Operated Pressure Relief Valve
PORV Pilot Operated Relief Valves
POS Point of sale; piece of shit
POSE Palm Operating System Emulator
POSRV Pilot Operated Safety Relief Valve
POST Power-up Self Test
POSV Pilot-Operated Safety Valve
POUs Publicly Owned Utilities
PP Protection Profile
PPC Pocket PC
PPDM Privacy Preserving Data Mining
PPDP Privacy Preserving Data Publishing
PPE Personal Protective Equipment
PPI Pixels Per Inch
PPP Point-to-Point Protocol
PPS Ports, Protocol, and Services
PPSM Ports, Protocol, and Services Management
PPTP Point-to-Point Tunneling Protocol
PPV positive-pressure ventilation
PPVPN Provisioner-Provided VPN
PQ Power Quality
PPQAS Password Policy Question-Answer System
PQC Post-Quantum Cryptography
PQCrypto Post-Quantum Cryptography
PRA Paperwork Reduction Act
PRAM Privacy Risk Assessment Methodology
Pre-PAK Pre-Primary Authorization Key
PRF Pseudo-Random Function
PRIME Privacy and Identity Management for Europe
PRIVO Privacy Vaults Online
PRL Potential Routers List
PRM Performance Reference Model
PRNG Pseudorandom Number Generator
PROM Programmable Read-only Memory
PROPIN Proprietary Information
ProSe Proximity Services
PRP Policy Retrieval Point
PRSN Primary Services Node
PRSN Primary Services Node
PRV Pressure Relief Valve
PS Personnel Security
PSCR Public Safety Communications Research
PSIRT Product Security Incident Response Team
PSK Pre-Shared Key
PSN Product Source Node
PSO Particle Swarm Optimization
PSP Payment Service Provider
PSS Probabilistic Signature Scheme
PSTN Public Switched Telephone Network
PSWAC Public Safety Wireless Advisory Committee
PTA Privacy Threshold Analysis
PTK Pairwise Transient Key
PTP Precision Time Protocol
PTS PIN Transaction Security
PTT Push-To-Talk
PTV perceived target value
PUB publication
PUC Public Utilities Commission
PUE Power Usage Effectiveness
PUK PIN Unblocking Key
P-value Tail Probability
PVG patch and vulnerability group
PVV PIN Verification Value
PWG Public Working Group
PWS Performance-Based Work Statement
PXE Preboot Execution Environment
Q
QA Quality Assurance
QA/QC Quality Assurance/Quality Control
QEMU Quick Emulator
QFE Quick Fix Engineering Software Updates
QoL Quality of Life
QoP quality of protection
QoS Quality of Service
QR Quick Response
QRF Quick Reaction Force
QSA Qualified Security Assessor
QUAL Qualification
R
RAU Reserve Augmentation Unit
RAW Read-After-Write
R&D research and development
R/W Read/Write
R2L Remote-to-Local User Attack
RA Registration Authority, Risk Assessment, Receiver Address
RaaS Ransomware-as-a-Service
RAD Rapid Application Development
RAdAC Risk-Adaptable Access Control
RADIUS Remote Authentication Dial-in User Service
RAID Random Array of Inexpensive Disks, Redundant Array of Inexpensive Disks
RAM random access memory
RAMPS Regional Alliances and Multistakeholder Partnerships to Stimulate
RAN Radio Access Network
Rand Random Number
RAPI Remote Application Programming Interface
RAPIDS Real-time Automated Personnel Identification System
RAR Risk Assessment Report
RAT Remote Access Tool
RBAC Role-Based Access Control
RBG Random Bit Generator
RBIS Risk-Based Inspection System
RBL Real-Time Blackhole List
RC2 Rivest Cipher 2
RC4 Rivest Cipher 4
RCD Records Disposition Schedule
RCE route cache entry
RDF Resource Description Framework
RCFL Regional Computer Forensics Laboratory
RCP Remote Copy Protocol, Ready Cybercrew Program
RCS Rich Communication Services
RDBMS Regional Database Management System
RDF Resource Description Framework
RDP Remote Desktop Protocol
RDS Reference Data Set, Records Disposition Schedule
R&D Research and Design
RED Classified information that is not encrypted
REL Rights Expression Language
REMSEC Remanence Security
REN-ISAC Research and Education Networking Information Sharing and Analysis Center
REP Robots Exclusion Protocol
RES Response
REST Representational State Transfer
RF Radio Frequency
RFC Request for Comments
RF CM Radio Frequency Countermeasures
RFD Reflected File Download Attack
RFI Request for Information
RFID Radio Frequency Identification
RFP Request for Proposal
RFTC Request for Technical Capabilities
RFU Reserved for Future Use
RIB Routing Information Base
RID Real-Time Inter-Network Defense, Registered application provider IDentifier
RIP Routing Information Protocol
RIPng Routing Information Protocol next generation
RIPv2 Routing Information Protocol version 2
RIPE NCC Réseaux IP Européens Network Coordination Centre
RIR Regional Internet Registry
RIS Remote Installation Services
RISC Reduced Instruction Set Computing
RITIS Regional Integrated Transportation Information System
RIT/RIC rapid intervention teams or crews
RLS Row Level Security
RM Risk Management
RMA reliability, maintainability, and availability
RMF Risk Management Framework
RMON Remote Monitoring
RN Relay Node
RNG Random Number Generator
ROA Route Origin Authorization
ROE Rules of Engagement
ROI Return on Investment
ROLIE Resource-Oriented Lightweight Information Exchange
ROM Read-Only Memory
ROS Robot Operating System
RoT Root of Trust
ROV Route Origin Validation
RP Relying Party, Responsible Person
RPA Resolvable Private Address
RPC remote procedure call
RPF Reverse Path Forwarding
RPKI Resource Public Key Infrastructure
RPKI VC RPKI Validating Cache
RPO Recovery Point Objective
RPM Revolutions per minute
RPS Registration Practice Statement
RQNT Request for Notification
RR Resource Record
RRAS Routing and Remote Access Service
RRC Radio Resource Control
RRSIG Resource Record Signature
RS Router Solicitation, relay station
RSA Rivest-Shamir-Adleman
RSASSA RSA Signature Scheme with Appendix
RSBAC rule set-based access control
RSIP Restart In Progress
RSN Robust Security Network
RSNA Robust Security Network Association
RSNIE Robust Security Network Information Element
RSO reduced sign-on
RSP Readiness Spares Packages
RSS Really Simple Syndication
RSSI Received Signal Strength Indication
RSTP Rapid Spanning Tree Protocol
RSVP Resource Reservation Protocol
RT Runtime, Requalification training
RTA (fictional) Radionuclide Transportation Agency
RTD Root of Trust for Detection
RTF Reader Talks First
RTLS Real-Time Location System
RTM Root of Trust for Measurement, Ready Tasking Memorandum
RTO Recovery Time Objective, Regional Transmission Operator
RTOI Real-Time Operations and Innovation
RTP Real-time Transport Protocol, Real-Time Pricing
RTR Root of Trust for Reporting
RTRB Realistic Training Review Board
RTRec Root of Trust for Recovery
RTS Root of Trust for Storage, Remote Telematics System
RTSP Real Time Streaming Protocol
RTU Root of Trust for Update
RuBAC Rule-Based Access Control
RuleML Rule Markup Language
R-UIM Removable User Identity Module