After failing to receive SMS text messages from five financial services websites that use them for two-factor authentication codes, Adam Engst resolved his problem with a quick call to T-Mobile to ...

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

Once they have access to your number, they can intercept your text messages, including 2FA codes, and gain unauthorized access to your accounts.

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 codes, which are the codes you receive via text messages when setting up 2FA using a phone number, are not well-protected. SMS messages are not end-to-end encrypted, meaning they can be ...

My advice has long been to remove phone numbers from your online accounts wherever you can, and avoid selecting SMS or phone calls for second factor or one-time codes.

Google is planning on getting rid of SMS two-factor authentication for Gmail to address a myriad of security issues.

Text messaging or online SMS is considered one of the most effective methods of driving traffic to an e-commerce store.