2FA Guides & Resources

In-depth authentication troubleshooting guides, recovery steps, and security best practices.

Google Authenticator Not Working

Fix invalid codes, time sync errors, and common login issues step-by-step.

What to do immediately if you lose access to your authenticator device.

Safely move your 2FA accounts to a new phone without losing access.

Understand why verification codes fail and how to fix the issue quickly.

Learn how two-factor authentication works and why it improves account security.

Understand the security model, strengths, and limitations of authenticator apps.