Authentication is the front door of every application and system. Coverage of authentication protocols, MFA and passkey adoption, federated identity, session security, and the architectural decisions that determine whether identity controls hold up against modern attacker techniques.
OAuth, OIDC, SAML, FIDO2, passkeys, and Zero Trust — modern authentication protocols are no longer optional. Here's how each one works and how to choose the right stack for your environment.
PKCE protects OAuth 2.0 public clients — mobile apps and SPAs — from authorization code interception. Full flow walkthrough, cryptographic detail, and implementation guide for 2026.
A Meta engineer built a script to bypass internal detection systems and download 30,000 private Facebook photos. This week we unpack what the case reveals about the insider threat, and why it's getting worse.
Form-based authentication in SharePoint authenticates users against SQL — not Active Directory. Full config walkthrough, security tradeoffs, and troubleshooting for FBA deployments.
SAML 2.0 authentication is the open standard that powers enterprise single sign-on. Here's how it works, where it falls short, and what to use instead.
The login form is the most attacked surface on the web. Here's how to implement form-based authentication correctly with modern security controls.
Federated identity management lets users log in once and access services across organizational boundaries. Here's how the protocols and trust models work.
The CHAP protocol verifies network identities using a challenge-response mechanism that never transmits the password. Still embedded in DSL, VPN, and RADIUS infrastructure, it remains relevant but carries real risks network teams need to understand.
Iris scanner technology explained — how iris recognition systems work, accuracy advantages, healthcare and banking use cases, and biometric identity verification.
