Authentication vs. Authorization

Proving who you are versus what you're allowed to do — and the protocols behind each.

Read

26 min

Practice MCQs

25

Interview QA

25

Edition

v3

Editorial status

Reviewed

Relevant for

Cloud Security Engineer,Cybersecurity Engineer,Identity and Access Management (IAM) Engineer,Network Engineer,Security Architect

Scope: NIST SP 800-63 Revision 4, OWASP Cheat Sheet Series, and RFC 6750 guidance accessed 2026-08-31..