The error message “Verification codes cannot be sent to phone numbers at this time” usually appears when you try to sign in, ...

With iOS 15, Apple can generate the codes normally served up via authenticator apps or text messages. Here's how to set it up for the services you've secured with two-factor authentication. Our team ...

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 ...

Enabling a verification code for your account logins can be a powerful deterrent to account hijacks. Second-factor authentication (2FA) requires that someone not just ...

If your Messages app often becomes cluttered with one-time verification codes that you need to manually delete, it's going to get a lot easier to clean them up in iOS 17. The iOS 17 update includes a ...

To enable two-step verification on Telegram, go to the app's Privacy and Security settings and follow its prompts.

Senior UK Editor — My interest in Android began with the beautiful Nexus 4 and the less-ugly-than-before Jelly Bean. Right now, I'm probably watching Black Books, playing football (soccer), or ...

For travelers, few frustrations are as common as being locked out of online accounts because a verification code never arrives. Banks, email providers, and apps often rely on SMS texts tied to ...