Not really. If someone gets into someone else's password manager they can easily get a copy of all usernames and passwords and, if they're quick enough, they ca

Not really. If someone gets into someone else's password manager they can easily get a copy of all usernames and passwords and, if they're quick enough, they can start resetting them / closing them / committing fraud. So yeah change the password and delete previous versions is a good first step but everything else has already leaked to who knows where.