IT Security/Acronyms

Acronyms that may be found on the exam.
Acronym	Full name
AAA	Authentication, Authorization, and Accounting
ACL	Access Control List
AES	Advanced Encryption Standard
AES-256	Advanced Encryption Standards 256-bit
AH	Authentication Header
AI	Artificial Intelligence
AIS	Automated Indicator Sharing
ALE	Annualized Loss Expectancy
AP	Access Point
API	Application Programming Interface
APT	Advanced Persistent Threat
ARO	Annualized Rate of Occurrence
ARP	Address Resolution Protocol
ASLR	Address Space Layout Randomization
ATT&CK	Adversarial Tactics, Techniques, and Common Knowledge
AUP	Acceptable Use Policy
AV	Antivirus
BASH	Bourne Again Shell
BCP	Business Continuity Planning
BGP	Border Gateway Protocol
BIA	Business Impact Analysis
BIOS	Basic Input/Output System
BPA	Business Partners Agreement
BPDU	Bridge Protocol Data Unit
BYOD	Bring Your Own Device
CA	Certificate Authority
CAPTCHA	Completely Automated Public Turing Test to Tell Computers and Humans Apart
CAR	Corrective Action Report
CASB	Cloud Access Security Broker
CBC	Cipher Block Chaining
CCMP	Counter Mode/CBC-MAC Protocol
CCTV	Closed-circuit Television
CERT	Computer Emergency Response Team
CFB	Cipher Feedback
CHAP	Challenge Handshake Authentication Protocol
CIA	Confidentiality, Integrity, Availability
CIO	Chief Information Officer
CIRT	Computer Incident Response Team
CMS	Content Management System
COOP	Continuity of Operation Planning
COPE	Corporate Owned, Personally Enabled
CP	Contingency Planning
CRC	Cyclical Redundancy Check
CRL	Certificate Revocation List
CSO	Chief Security Officer
CSP	Cloud Service Provider
CSR	Certificate Signing Request
CSRF	Cross-site Request Forgery
CSU	Channel Service Unit
CTM	Counter Mode
CTO	Chief Technology Officer
CVE	Common Vulnerability Enumeration
CVSS	Common Vulnerability Scoring System
CYOD	Choose Your Own Device
DAC	Discretionary Access Control
DBA	Database Administrator
DDoS	Distributed Denial of Service
DEP	Data Execution Prevention
DES	Digital Encryption Standard
DHCP	Dynamic Host Configuration Protocol
DHE	Diffie-Hellman Ephemeral
DKIM	DomainKeys Identified Mail
DLL	Dynamic Link Library
DLP	Data Loss Prevention
DMARC	Domain Message Authentication Reporting and Conformance
DNAT	Destination Network Address Translation
DNS	Domain Name System
DoS	Denial of Service
DPO	Data Privacy Officer
DRP	Disaster Recovery Plan
DSA	Digital Signature Algorithm
DSL	Digital Subscriber Line
EAP	Extensible Authentication Protocol
ECB	Electronic Code Book
ECC	Elliptic Curve Cryptography
ECDHE	Elliptic Curve Diffie-Hellman Ephemeral
ECDSA	Elliptic Curve Digital Signature Algorithm
EDR	Endpoint Detection and Response
EFS	Encrypted File System
ERP	Enterprise Resource Planning
ESN	Electronic Serial Number
ESP	Encapsulated Security Payload
FACL	File System Access Control List
FDE	Full Disk Encryption
FIM	File Integrity Management
FPGA	Field Programmable Gate Array
FRR	False Rejection Rate
FTP	File Transfer Protocol
FTPS	Secured File Transfer Protocol
GCM	Galois Counter Mode
GDPR	General Data Protection Regulation
GPR	GNU Privacy Guard
GPO	Group Policy Object
GPS	Global Positioning System
GPU	Graphics Processing Unit
GRE	Generic Routing Encapsulation
HA	High Availability
HDD	Hard Disk Drive
HIDS	Host-based Intrusion Detection System
HIPS	Host-based Intrusion Prevention System
HMAC	Hashed Message Authentication Code
HOTP	HMAC-based One-time Password
HSM	Hardware Security Module
HTML	Hypertext Markup Language
HTTP	Hypertext Transfer Protocol
HTTPS	Hypertext Transfer Protocol Secure
HVAC	Heating, Ventilation Air Conditioning
IaaS	Infrastructure as a Service
IaC	Infrastructure as Code
IAM	Identity and Access Management
ICMP	Internet Control Message Protocol
ICS	Industrial Control Systems
IDEA	International Data Encryption Algorithm
IDF	Intermediate Distribution Frame
IdP	Identity Provider
IDS	Intrusion Detection System
IEEE	Institute of Electrical and Electronics Engineers
IKE	Internet Key Exchange
IM	Instant Messaging
IMAP	Internet Message Access Protocol
IoC	Indicators of Compromise
IoT	Internet of Things
IP	Internet Protocol
IPS	Intrusion Prevention System
IPSec	Internet Protocol Security
IR	Incident Response
IRC	Internet Relay Chat
IRP	Incident Response Plan
ISO	International Standards Organization
ISP	Internet Service Provider
ISSO	Information Systems Security Officer
IV	Initialization Vector
KDC	Key Distribution Center
KEK	Key Encryption Key
L2TP	Layer 2 Tunneling Protocol
LAN	Local Area Network
LDAP	Lightweight Directory Access Protocol
LEAP	Lightweight Extensible Authentication Protocol
MaaS	Monitoring as a Service
MAC	Mandatory Access Control
MAC	Media Access Control
MAC	Message Authentication Code
MAN	Metropolitan Area Network
MBR	Master Boot Record
MD5	Message Digest 5
MDF	Main Distribution Frame
MDM	Mobile Device Management
MFA	Multifactor Authentication
MFD	Multifunction Device
MFP	Multifunction Printer
ML	Machine Learning
MMS	Multimedia Message Service
MOA	Memorandum of Agreement
MOU	Memorandum of Understanding
MPLS	Multi-protocol Label Switching
MSA	Master Service Agreement
MSCHAP	Microsoft Challenge Handshake Authentication Protocol
MSP	Managed Service Provider
MSSP	Managed Security Service Provider
MTBF	Mean Time Between Failures
MTTF	Mean Time to Failure
MTTR	Mean Time to Recover
MTU	Maximum Transmission Unit
NAC	Network Access Control
NAT	Network Address Translation
NDA	Non-disclosure Agreement
NFC	Near Field Communication
NGFW	Next-generation Firewall
NIDS	Network-based Intrusion Detection System
NIPS	Network-based Intrusion Prevention System
NIST	National Institute of Standards & Technology
NTFS	New Technology File System
NTLM	New Technology LAN Manager
NTP	Network Time Protocol
OAUTH	Open Authorization
OCSP	Online Certificate Status Protocol
OID	Object Identifier
OS	Operating System
OSINT	Open-source Intelligence
OSPF	Open Shortest Path First
OT	Operational Technology
OTA	Over the Air
OVAL	Open Vulnerability Assessment Language
P12	PKCS #12
P2P	Peer to Peer
PaaS	Platform as a Service
PAC	Proxy Auto Configuration
PAM	Privileged Access Management
PAM	Pluggable Authentication Modules
PAP	Password Authentication Protocol
PAT	Port Address Translation
PBKDF2	Password-based Key Derivation Function 2
PBX	Private Branch Exchange
PCAP	Packet Capture
PCI DSS	Payment Card Industry Data Security Standard
PDU	Power Distribution Unit
PEAP	Protected Extensible Authentication Protocol
PED	Personal Electronic Device
PEM	Privacy Enhanced Mail
PFS	Perfect Forward Secrecy
PGP	Pretty Good Privacy
PHI	Personal Health Information
PII	Personally Identifiable Information
PIV	Personal Identity Verification
PKCS	Public Key Cryptography Standards
PKI	Public Key Infrastructure
POP	Post Office Protocol
POTS	Plain Old Telephone Service
PPP	Point-to-Point Protocol
PPTP	Point-to-Point Tunneling Protocol
PSK	Pre-shared Key
PTZ	Pan-tilt-zoom
PUP	Potentially Unwanted Program
RA	Recovery Agent
RA	Registration Authority
RACE	Research and Development in Advanced Communications Technologies in Europe
RAD	Rapid Application Development
RADIUS	Remote Authentication Dial-in User Service
RAID	Redundant Array of Inexpensive Disks
RAS	Remote Access Server
RAT	Remote Access Trojan
RBAC	Role-based Access Control
RBAC	Rule-based Access Control
RC4	Rivest Cipher version 4
RDP	Remote Desktop Protocol
RFID	Radio Frequency Identifier
RIPEMD	RACE Integrity Primitives Evaluation Message Digest
ROI	Return on Investment
RPO	Recovery Point Objective
RSA	Rivest, Shamir, & Adleman
RTBH	Remotely Triggered Black Hole
RTO	Recovery Time Objective
RTOS	Real-time Operating System
RTP	Real-time Transport Protocol
S/MIME	Secure/Multipurpose Internet Mail Extensions
SaaS	Software as a Service
SAE	Simultaneous Authentication of Equals
SAML	Security Assertions Markup Language
SAN	Storage Area Network
SAN	Subject Alternative Name
SASE	Secure Access Service Edge
SCADA	Supervisory Control and Data Acquisition
SCAP	Security Content Automation Protocol
SCEP	Simple Certificate Enrollment Protocol
SD-WAN	Software-defined Wide Area Network
SDK	Software Development Kit
SDLC	Software Development Lifecycle
SDLM	Software Development Lifecycle Methodology
SDN	Software-defined Networking
SE Linux	Security-enhanced Linux
SED	Self-encrypting Drives
SEH	Structured Exception Handler
SFTP	Secured File Transfer Protocol
SHA	Secure Hashing Algorithm
SHTTP	Secure Hypertext Transfer Protocol
SIEM	Security Information and Event Management
SIM	Subscriber Identity Module
SLA	Service-level Agreement
SLE	Single Loss Expectancy
SMS	Short Message Service
SMTP	Simple Mail Transfer Protocol
SMTPS	Simple Mail Transfer Protocol Secure
SNMP	Simple Network Management Protocol
SOAP	Simple Object Access Protocol
SOAR	Security Orchestration, Automation, Response
SoC	System on Chip
SOC	Security Operations Center
SOW	Statement of Work
SPF	Sender Policy Framework
SPIM	Spam over Internet Messaging
SQL	Structured Query Language
SQLi	SQL Injection
SRTP	Secure Real-Time Protocol
SSD	Solid State Drive
SSH	Secure Shell
SSL	Secure Sockets Layer
SSO	Single Sign-on
STIX	Structured Threat Information eXchange
SWG	Secure Web Gateway
TACACS+	Terminal Access Controller Access Control System
TAXII	Trusted Automated eXchange of Indicator Information
TCP/IP	Transmission Control Protocol/Internet Protocol
TGT	Ticket Granting Ticket
TKIP	Temporal Key Integrity Protocol
TLS	Transport Layer Security
TOC	Time-of-check
TOTP	Time-based One-time Password
TOU	Time-of-use
TPM	Trusted Platform Module
TTP	Tactics, Techniques, and Procedures
TSIG	Transaction Signature
UAT	User Acceptance Testing
UAV	Unmanned Aerial Vehicle
UDP	User Datagram Protocol
UEFI	Unified Extensible Firmware Interface
UEM	Unified Endpoint Management
UPS	Uninterruptable Power Supply
URI	Uniform Resource Identifier
URL	Universal Resource Locator
USB	Universal Serial Bus
USB OTG	USB On the Go
UTM	Unified Threat Management
UTP	Unshielded Twisted Pair
VBA	Visual Basic
VDE	Virtual Desktop Environment
VDI	Virtual Desktop Infrastructure
VLAN	Virtual Local Area Network
VLSM	Variable Length Subnet Masking
VM	Virtual Machine
VoIP	Voice over IP
VPC	Virtual Private Cloud
VPN	Virtual Private Network
VTC	Video Teleconferencing
WAF	Web Application Firewall
WAP	Wireless Access Point
WEP	Wired Equivalent Privacy
WIDS	Wireless Intrusion Detection System
WIPS	Wireless Intrusion Prevention System
WO	Work Order
WPA	Wi-Fi Protected Access
WPS	Wi-Fi Protected Setup
WTLS	Wireless TLS
XDR	Extended Detection and Response
XML	Extensible Markup Language
XOR	Exclusive Or
XSRF	Cross-site Request Forgery
XSS	Cross-site Scripting

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