One of the best ways to prevent your online accounts from being compromised is to use two-factor authentication (2FA). This adds a second layer to the login process, requiring you to use a one-time generated code (usually created on your smartphone) to successfully log in using tools like Google Authenticator.

That is, of course, if you actually have a smartphone with Google Authenticator installed. If you don’t, your options are limited, but it is possible to use Google Authenticator on your PC without needing another device. If you want to know how to use Google Authenticator on Windows 10, here’s what you’ll need.

If a username and password are leaked online, your account is at risk. Even using a password manager won’t help you at this point: you need to change all passwords that were compromised in a breach.

To solve this problem, you can link your online accounts to a two-factor authentication service like Google Authenticator. This will generate a one-time password (OTP) to successfully log in to Google and other online services.