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 ...

To join the CNBC Technology Executive Council, go to cnbccouncils.com/tec OTPs via text message, or SMS, are vulnerable to attacks by fraudsters through a variety of ...

First, turn on two-factor authentication for the account. You'll get a QR code or setup key. Next, open the Google Authenticator app and tap the plus sign. Record the 2FA code/key. Whenever you're ...