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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

SOC (Security Operations Center)
A centralized team and facility responsible for monitoring, detecting, analyzing, and responding to cybersecurity threats 24/7.
Cryptographic Key Management
The practices and procedures for generating, storing, distributing, rotating, and revoking encryption keys securely.
Encryption
The process of converting readable data into an unreadable format using algorithms, reversible only with the correct key.
JWT (JSON Web Token)
A compact, self-contained token format used for securely transmitting information between parties as a JSON object.
Security Headers
HTTP response headers that instruct browsers to enable security features like XSS protection, framing prevention, and content type enforcement.
Two-Factor Authentication (2FA)
A security method requiring two different forms of identification before granting access to an account.
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