Passkeys built on FIDO2 / WebAuthn standards are revolutionizing digital identity by replacing vulnerable passwords with public-key cryptography tied to biometric hardware. While Passkeys eliminate credential stuffing and basic phishing, they are not a silver bullet against all identity attacks.
Where Passkey Implementations Go Wrong
- Post-Authentication Session Hijacking: Attackers malware-scrape browser session cookies (`session_id`, JWTs) after the Passkey authentication completes, bypassing biometrics entirely.
- Cross-Domain WebAuthn Origin Misconfigurations: Improperly validated relying party IDs (RP IDs) can allow attackers to proxy WebAuthn requests across malicious subdomains.
- Account Recovery Backdoors: If your application falls back to insecure email OTPs or security questions when a user loses their Passkey, attackers will target the weaker recovery path.
SA Infotech evaluates authentication workflows end-to-end—ensuring your modern passkey implementation is protected against session hijacking, token replay, and logic flaws.