Security Audit

A security audit is a structured assessment of an organization's systems, configurations, policies and practices, measured against a standard or checklist to identify weaknesses and confirm that controls are effective.

Why it matters

Audits give management and customers evidence that security is being managed. They may be internal or performed by independent firms and often feed certifications such as SOC 2 or ISO 27001. Unlike a penetration test, which tries to exploit systems, an audit mainly reviews controls, evidence and processes.

Audits also check non-technical areas such as onboarding and offboarding, vendor management and employee training, since many incidents start there.

Example

An auditor samples user access lists, checks that terminated staff lost access within the policy window, reviews patch records and examines firewall rules, then reports gaps with recommended fixes and deadlines.

Common mistakes

• Treating the audit as a pass or fail exercise rather than a source of improvements.
• Preparing documents only at audit time instead of operating controls continuously.
• Not following up on findings.

Related

• Penetration testing
• Vulnerability
• Tool: Security headers checker

This page is general information written by our editorial team and updated when documentation changes. Servers and providers differ, so test changes safely first. See our editorial policy and disclaimer.