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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

Supply Chain Attack
A cyberattack that targets less-secure elements in the software supply chain to compromise downstream users and organizations.
Cryptographic Key Management
The practices and procedures for generating, storing, distributing, rotating, and revoking encryption keys securely.
Security Headers
HTTP response headers that instruct browsers to enable security features like XSS protection, framing prevention, and content type enforcement.
Data Loss Prevention (DLP)
A strategy and set of tools that detect and prevent unauthorized transmission of sensitive data outside an organization.
API Security
Practices and mechanisms for protecting APIs from unauthorized access, data breaches, and abuse.
PKI (Public Key Infrastructure)
A framework of policies, hardware, and software for creating, managing, distributing, and revoking digital certificates.
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