USB Two Factor Authentication Dongle
Yubico YubiKey 4 appears to be an excellent device for a two-factor authentication solution. Two factor authentication means you need two things before gaining access. In this case, one piece of information is your password and the other piece is your finger print.
If you are using a password manager right now, (ie. Last Pass, Dashlane, etc) I would recommend getting this. The benefit of this device with a password manager is you can enable two factor authentication to add a new device capable of signing into your account.
This means if someone knows your password, it doesn’t really matter because they would also need your finger print. Understand that nearly all password managers conform to some sort of security protocol like FIDO U2F, smart card (PIV), OpenPGP, etc which in turn works with Yubikey.
The YubiKey works with Microsoft Windows, Mac OS X, Linux, Chrome OS operating systems, and on major browsers. In addition, the following major websites will also support this device: Gmail, Facebook, Dropbox, Twitter, Dashlane and LastPass.
Spend some cash and put the YubiKey on your keychain. For a small amount of money on security could save you a ton of time down the road if your identity or money got stolen. There are over 275 reviews on Amazon for the YubiKey with an average star rating of 4.5.