The Google Authenticator 2FA app has featured strongly in cybersecurity news stories lately, with Google adding a feature to let you backup your 2FA data into the cloud and then restore it onto other devices.

To explain, a 2FA (two-factor authentication) app is one of those programs that you run on your mobile phone or tablet to generate one-time login codes that help to secure your online accounts with more than just a password.

The problem with conventional passwords is that there are numerous ways that crooks can beg, steal, or borrow them.