Security 802.1X and Network Access Control (NAC) Considerations
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Authentication
Security 
Active Directory Inside Kerberos: A Deep Dive into the Protocol Internals
A practical breakdown of Kerberos internals: AS-REQ, TGS-REQ, the PAC, and why RC4 vs AES etypes matter for attackers and defenders.
Web Exploitation JWT Vulnerabilities and Attacks: alg none, Key Confusion, and kid Injection
A practical guide to exploiting JSON Web Token flaws — alg=none, key confusion, weak secrets, and kid injection — plus defenses.
Security Authentication Bypass Techniques: Logic Flaws, SQLi, Weak Resets, and 2FA Bypass
A practical walkthrough of four authentication bypass classes — logic flaws, SQLi, weak password resets, and 2FA bypass — with detection and defense.