Google’s Password Checkup feature is now integrated directly into your Google Account. It will warn you if your saved passwords have security issues such as weak strength or have been compromised through data breaches. Google also plans to have Google Chrome alerting you when your saved logins were found in data breaches and then prompts you to change your password. Google is not stopping there, though, as we reported in August, Google plans on having Google Chrome Alerts users if their saved passwords are compromised or compromised.
Source: https://www.bleepingcomputer.com/news/google/googles-password-manager-now-warns-about-compromised-accounts/