Is Instagram not sending the SMS code for two-factor authentication? Let's help you figure out what's going on!

If Instagram is not sending an SMS code when you need it, you can get stuck and locked out of your account. Here are several ways to troubleshoot.

This is a full tutorial for a simple SMS messaging project. Learn to list, send and intercept messages and get to grips with Android's new permissions!

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

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.

SMS 2FA isn't secure enough It's surprisingly easy to get hold of an SMS code. If someone steals your smartphone, for example, they'll be able to access all of the SMS codes it receives. But ...