Many Web sites and apps now offer two-factor authentication (2FA), which requires you to enter a short numeric code—the so-called second factor—in addition to ...

LONDON — A coded message from World War II found on the leg of a dead carrier pigeon in an English chimney cannot be deciphered, according to British intelligence agents. The handwritten message on a ...

SMS text messages are a weak, dangerous way of providing two-factor authentication codes, as we discussed years ago in “Facebook Shows Why SMS Isn’t Ideal for Two-Factor Authentication” (19 February ...

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

Every iPhone owner is being urged to learn an iMessage trick that cleans up your inbox. If you’re a regular iPhone user, you’ll probably find that your Messages app is easily clogged up. Often it’ll ...