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.

Google has said it's planning to stop sending 2FA codes via text message to verify Gmail accounts in favor of security tools such as passkeys and QR codes that you would scan with your device.

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.

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.

With SMS an unsecure method of authentication, Google is eyeing a more robust solution with QR codes.

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

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 SMS is already outdated and unsafe, says Google.