Many websites and apps rely on a weak form of two-factor authentication (2FA) that involves texting you a short number or code. These sites and apps might also offer to make an automated voice call ...

Have you ever received a text message or a phone call from someone asking you to verify your identity by sending them a code? If you have, you may have been targeted by the Google Voice verification ...

Many apps and websites require you to enter a verification code to log in. For some services, you only need to enter your phone number or email address and then use a ...

Two-factor authentication is an essential security setting for any online accounts you have. It protects your accounts from falling into the wrong hands and prevents unauthorized access. But if you ...

Jeff Carlson writes about mobile technology for CNET. He is also the author of dozens of how-to books covering a wide spectrum ranging from Apple devices and cameras to photo editing software and ...