An investigation into the complexity of the global telecom system shows weaknesses in the transmission of secret codes sent ...

A million two-factor authentication codes sent via SMS passed through an obscure third-party company. Here's how it happened ...

Here are some other, safer ways to verify your identity and sign into your accounts. Do you receive login security codes for ...

WhatsApp uses these codes for logging into the app itself. And you'll likely have been sent them over text for other services too, like Facebook, a TV app, or even your bank. These texts are gold ...