What is this message saying my password has appeared in a breach?
With iOS 14, your iPhone warns you when one of your website passwords stored in iCloud Keychain has appeared in a data breach. Is this message legitimate? And if so, what they should you do? It is legitimate and what has happened is that online criminals have stolen username and password data from a company, and your credentials were included in that data breach. You should indeed change your password immediately, and it’s fine, and recommended, to let the iPhone suggest a strong password for you. Or, if it makes you feel more comfortable, you can usually change the password in Safari on your Mac instead. Either way, make sure it’s unique—never reuse passwords across multiple sites!