Password reset is one of those features that looks simple until you start thinking about it from a security point of view. The flow is usually straightforward: A user enters their email. They receive a reset link. They set a new password. They get back into their account. From the user’s perspective, it feels like a small part of the login experience. But from a developer’s perspective, this flow deserves a lot more attention. Why? Because a password reset token is not just a random string. It is temporary access to a user’s account. If someone gets access to that token while it is still valid, they may be able to reset the password without knowing the old one. That is why reset tokens should never be treated like normal application data. Exposing reset tokens without thinking about leakage Many apps use reset links like this: https://example.com/reset-password?token=abc123 This approach is common, but the risk starts when we forget where URLs can end up.…