email-and-password-best-practices

Secure password reset flows require built-in timing attack prevention and token security. This mechanism ensures password reset links are secure, valid, and expire appropriately to protect user accounts from unauthorized access.

Password hashing secures credentials using the default `scrypt` algorithm or custom options like `Argon2id`. Implementing these hashing algorithms ensures robust protection of user passwords during the authentication process.

Configuring mandatory email verification requires setting `emailVerification.sendVerificationEmail` to your email sender. This enforces email validity, ensuring a user must verify their email before successfully logging in.

Preventing timing attacks during password reset involves implementing secure flows with built-in timing attack prevention. This ensures consistent response times and secures reset tokens against malicious exploitation.

Better Auth supports callback URL security to protect email verification and password reset flows. Configuring these callbacks correctly ensures redirection targets remain safe from malicious manipulation.