Simple: everyday language, with no technical background needed.
Understand it
Authentication failures let the wrong party establish or retain an identity. Weak sign-in, recovery, enrollment or session handling can undermine otherwise strong access rules.
Cedar protects normal login with MFA but allows account recovery through an easily compromised channel. The weaker recovery path can become the preferred entrance.
Under the hood
Treat passwords, factors, recovery codes and sessions as one lifecycle. Rate limits, credential checks, factor binding and session revocation need coordinated behavior.
Practitioner perspective
Review factor enrollment and recovery changes as high-value events. Monitor anomalous sign-ins with context and avoid turning a lockout control into an easy denial-of-service mechanism. Strong authentication still needs separate authorization.
Watch it work
A fictional, simplified model. Select a component to inspect it, or follow the steps in order.
Explore the system
Protected login
Cedar protects normal login with MFA but allows account recovery through an easily compromised channel. The weaker recovery path can become the preferred entrance.
Read every step without animation
Failure path
- Protected login. Cedar protects normal login with MFA but allows account recovery through an easily compromised channel. The weaker recovery path can become the preferred entrance.
- Weak recovery. Authentication failures let the wrong party establish or retain an identity. Weak sign-in, recovery, enrollment or session handling can undermine otherwise strong access rules.
- Account control lost. MFA on the login screen alone does not secure every recovery path.
The intended security boundary is not enforced.
Defensive path
- Recovery assurance. Protect recovery and enrollment with assurance appropriate to the account.
- Identity verified. Treat passwords, factors, recovery codes and sessions as one lifecycle. Rate limits, credential checks, factor binding and session revocation need coordinated behavior.
- Sessions reviewed. Review factor enrollment and recovery changes as high-value events. Monitor anomalous sign-ins with context and avoid turning a lockout control into an easy denial-of-service mechanism. Strong authentication still needs separate authorization.
The improved path addresses the specific failure; verify it in your environment.
Attack view
Cedar protects normal login with MFA but allows account recovery through an easily compromised channel. The weaker recovery path can become the preferred entrance.
Defender view
- Protect recovery and enrollment with assurance appropriate to the account.
- Verify the expected allowed and denied outcomes in a controlled environment.
Common mistakes
- MFA on the login screen alone does not secure every recovery path.
- A strong login policy can be undermined by weaker account linking, enrollment or recovery.
Check your understanding
Active recall: explain this idea in 30 seconds
Authentication failures let the wrong party establish or retain an identity. Weak sign-in, recovery, enrollment or session handling can undermine otherwise strong access rules.
Now give an example and name one limitation. Revisit the explanation if you get stuck.
Primary sources
Original explanations informed by these specifications and official resources. Source versions and lesson review are separate from product updates.
Content reviewed 2026-09-10. Framework reference: OWASP Top 10 2025. Read the editorial policy.