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

Apple streamlined two-factor login confirmations via text message in iOS 12 and macOS 10.14 Mojave. But using SMS to validate your login remains problematic because of phone number hijacking. Apple ...

KSL NewsRadio is using what's called an SMS short code. Short codes are five- or six-digit numbers that can be used to send and receive texts.

Students this month may be voting on a referendum calling for the purchase of a university SMS code to facilitate communication and information dissemination on the Tufts Medford/Somerville campus.

Gmail is set to replace SMS-based authentication codes with QR code systems to verify user identity as part of Google’s effort to transition to a more secure model of two-factor authentication ...

Multifactor authentication that uses SMS messaging as a second factor is vulnerable to simple hacks. User education is the best defense.

Students this month may be voting on a referendum calling for the purchase of a university SMS code to facilitate communication and information dissemination on the Tufts Medford/Somerville campus.

A security lapse has exposed a massive database containing tens of millions of text messages, including password reset links, two-factor codes, shipping ...

Elon Musk disabled specific microservices at Twitter, which likely included Twitter SMS 2FA. If you used text messages to prove your identity when logging into Twitter, you wouldn’t be able to ...

Millions of SMS text messages—many containing one-time passcodes, password reset links, and plaintext passwords—were exposed in an Internet-accessible database that could be read or monitored ...

Gmail SMS Authentication Is Shutting Down in Favor of QR Code Verification—Is This a More Secure Method? SMS is already outdated and unsafe, says Google.