CompTIA Security+ Acronym Cheat Sheet

Vocabulary flashcards covering key security acronyms, recovery metrics, and risk assessment formulas from the CompTIA Security+ cheat sheet.

SIEM

Security Information and Event Management; collects, correlates, and analyzes security logs.

SOAR

Security Orchestration, Automation, and Response; automates security workflows and incident response.

EDR

Endpoint Detection and Response; monitors and responds to threats on endpoints.

XDR

Extended Detection and Response; provides threat detection across multiple security layers.

IDS

Intrusion Detection System; detects suspicious activity and generates alerts.

IPS

Intrusion Prevention System; detects and blocks malicious activity.

SAML

Security Assertion Markup Language; used for authentication and Single Sign-On.

OAuth

Open Authorization; provides authorization without sharing passwords.

RTO

Recovery Time Objective; maximum acceptable downtime after a disruption.

RPO

Recovery Point Objective; maximum acceptable data loss measured in time.

ALE

Annual Loss Expectancy; expected annual financial loss from a risk. Calculated as $ALE = SLE \times ARO$.

SLE

Single Loss Expectancy; financial loss from a single incident.

ARO

Annual Rate of Occurrence; expected number of times an event occurs annually.

DLP

Data Loss Prevention; prevents sensitive information from leaving an organization.

NAC

Network Access Control; controls access to a network based on device compliance.

MFA

Multi-Factor Authentication; uses multiple authentication factors.

SSO

Single Sign-On; one login grants access to multiple applications.