How to Add Two-Factor Authentication to Osclass
A practical Osclass 2FA guide for authenticator apps, email codes, recovery options and trusted devices.
Add a second step, not a second password
Two-factor authentication protects an Osclass account after the normal password check. The first factor remains the password; the second factor is a short-lived code or another proof controlled by the user. That separation is what makes 2FA useful when a password is exposed.
- TOTP authenticator apps work without email delivery.
- Email codes are easier for some users but depend on reliable outgoing mail.
- Recovery codes provide an emergency path when the normal second factor is unavailable.
TOTP is the strongest everyday option
Time-based one-time passwords are generated locally by apps such as Google Authenticator, Microsoft Authenticator, 1Password or Bitwarden. The shared secret used to create those codes should be protected at rest and never displayed again unnecessarily after setup.
- Show the setup key only during enrollment.
- Require a current six-digit code before activation is completed.
- Provide recovery codes and encourage the user to keep them offline.
Balance security with account recovery
Trusted devices can reduce friction by remembering a verified browser for a limited period. Email codes can serve as an alternate method where appropriate. Attempt limits and expiration times should prevent unlimited guessing without making legitimate recovery impossible.
- Use a finite trusted-device duration.
- Expire email codes quickly.
- Log security-relevant actions such as enabling, disabling or recovering 2FA.
Combine 2FA with a sensible password policy
2FA is not a reason to accept weak passwords. A practical Osclass setup combines a minimum password policy with optional 2FA for users who want stronger protection. TTB Two-Factor Authentication provides the second-step methods, while TTB Password Policy covers password rules and validation.