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Security Beginner

What is Security Audit?

A systematic examination of an information system to assess compliance with security policies, identify vulnerabilities, and verify controls.

Security audits evaluate whether systems meet defined security standards and best practices. Types include internal audits (by the organization), external audits (by third parties), compliance audits (SOC 2, ISO 27001, PCI DSS, GDPR), and technical audits (vulnerability assessments, penetration tests). Audit scope covers access controls, data protection, network security, change management, incident response procedures, and backup/recovery. Deliverables include findings classified by severity, risk assessments, and remediation recommendations. Audit logs — records of who did what and when — are essential evidence. Regular audits demonstrate security maturity and build customer trust.

Related Terms

Principle of Least Privilege
A security principle where users and programs receive only the minimum access rights needed to perform their specific tasks.
DDoS (Distributed Denial of Service)
An attack that floods a target server or network with traffic from multiple sources to overwhelm it and deny service to legitimate users.
XSS (Cross-Site Scripting)
An attack that injects malicious scripts into web pages viewed by other users, potentially stealing data or session tokens.
Zero Trust
A security model that requires strict identity verification for every user and device, regardless of their network location.
Webhook Signature Verification
A security mechanism that verifies webhook payloads are authentic and unmodified using cryptographic signatures.
WAF (Web Application Firewall)
A security solution that filters and monitors HTTP traffic between a web application and the internet, blocking common attacks.
 View All Security Terms →