Google Cloud Authenticator: The Cloud Brain Powering Your Passwordless Future — And Its Sneaky Vulnerabilities
Your thumb hovers. Click. Logged in — no password needed. But who's really holding the keys? Google Cloud Authenticator, the shadowy cloud service syncing your passkeys across devices.
⚡ Key Takeaways
- Google Cloud Authenticator centralizes passkey sync, boosting usability but expanding attack surface.
- TPM-backed keys secure onboarding, yet cloud attestations introduce replay and spoof risks.
- Historical parallel to Kerberos predicts future 'passkey farms' if unmitigated.
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Originally reported by Palo Alto Unit 42
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