What it means
Password Monitor compares saved Edge credentials with known leaked credential data. A warning means that saved password is unsafe to keep using, even if the leak came from an unrelated website or an old incident. Microsoft says the warning does not mean Edge itself leaked the data. The match also does not establish whether somebody signed in to the specific service named in your saved item.
A real-world example
A user saved the same password for a forum and a shop. A known breach exposes that string and Edge warns on the shop entry. The shop may have no intrusion at all, yet both accounts need a different password now because the leaked string is reusable.
What to do
Change the password through each service's verified site, update the correct saved item, inspect recent account activity and strengthen sign-in. Run a fresh check after sync; investigate duplicate old entries before ignoring a persistent warning.
The distinction that matters
A clean scan covers only the saved credentials and datasets currently available to the feature. It is not an inventory of every account you own. A provider's breach notice and an account activity log are different evidence sources; neither should be inferred from a browser warning alone.
Microsoft Edge Password Monitor
