Think of your account password and the verification code as working together, similar to a doorknob lock and a deadbolt. If you unlock the doorknob but not the deadbolt, you can't get inside.

This, along with the ability to send a one-time password (OTP) verification code through voice call, is how hackers pull it off. Read more about WhatsApp. APP-ALLING!

If you've set up two-step verification to protect your Microsoft account, it won't be long before you attempt to sign in to a Microsoft app or your old Xbox 360 with your account name and password ...

In iOS, open Settings > [your account] > Password & Security and then tap Get Verification Code. In macOS, go to the iCloud preference pane, click the Security tab, and then click Get Verification ...