Chrome’s Automatic Password Change Feature and Implementation Guidelines for Websites

Google has experimented with an automatic password‑change feature in Chrome that works with password‑leak detection to improve account security; when a saved password is found leaked, Chrome alerts the user, generates a high‑strength password, and replaces it with almost no manual steps.

This capability requires websites to adopt Google’s new measures to streamline the password‑change process, allowing Chrome to automate login, modification, and storage, thereby reducing friction for users.

Google Chrome Vice President and General Manager said:

If we tell you a password is weak, you really need to change it, which is annoying.

We know that if something is annoying, people won’t actually do it, so we believe automatic password changes not only boost security but also usability, creating a win‑win for users.

Chrome’s automatic password change is entirely user‑controlled; it will not silently modify passwords in the background, and even when a leak is detected it only prompts the user, who decides whether to proceed.

Websites need to implement the following measures to cooperate with browsers and password managers:

• Auto‑fill optimization: use autocomplete="current-password" and autocomplete="new-password" to trigger auto‑fill and storage.

• Change‑password URL: redirect users to /.well-known/change-password to your site’s password‑change form, enabling password managers to guide users to the appropriate page when a vulnerable password is detected.

For detailed guidance, visit:

https://web.dev/articles/sign-in-form-best-practices

https://web.dev/articles/sign-up-form-best-practices

https://web.dev/articles/change-password-url

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