Bitwarden is perfect in regards to keeping your passwords safe. In fact it's a little too perfect. When you get an Open-Source project like this it's usually a crap shoot on what you're gonna get. Some features may be missing. Like account recovery, Autofill and Autosave on default making any phishing site look even more fishy when you rely on autofills to check the url for you. If you are this paranoid that you would switch from lastpass. Keep your passwords on an encrypted USB. Or use lastpass and don't save your email account.