Daniel is having an issue with Windows 10, getting a notification that his Microsoft account has had its password changed. He has to verify his account. Then after a few days, the process repeats. Leo suggests turning on two-factor authentication and installing the Microsoft Authenticator app on your phone. It may be that someone keeps changing Daniel's password. Using two-factor authentication that will alert you and require an authenticator will prevent that.
log in issues
Mike is having issues with his Macbook Air forgetting his passwords when he's online. He constantly has to log in. Leo says that this is a common problem with macOS, especially when you have 2 Factor Authentication enabled. And if you're using a VPN, your location isn't the same, which could be prompting macOS to make you log in again. Apple is good on security, obsessed with it actually. As such, it's likely that since Mike is using a VPN, the location changes, and thus, macOS requires a new login. So try turning off your VPN and see if the issue continues.