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

It's not safe to have security codes texted to your phone. Luckily, there are other ways to log into your accounts.

One-time SMS codes are widely used as the second checkpoint in two-factor authentication (2FA) to sign into everything from banking apps to email accounts. As I've written before, though, SMS is one ...

An investigation into the complexity of the global telecom system has revealed weaknesses in the transmission of secret codes ...

A new report found that around a million two-factor authentication codes sent by text message appear to have been intercepted. A tech industry whistleblower revealed that the 2FA security codes ...