NASA has recently spotted something intriguing on Mars: a series of dark dunes that bear an uncanny resemblance to Morse code. While the discovery has sparked curiosity, these patterns are a natural ...

Vector flat phone chat bubbles. Sms messages. Speech bubbles. Short message service bubbles.(Getty Images/iStockphoto/Ihor Kashurin) Q: I received a text message from 77958 with a security code for ...

Information could potentially be stored in ice for millennia, simply by making subtle changes to the shape and position of internal bubbles, which can then be converted into binary or Morse codes.

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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 ...

Discover how FontCode technology hides secret messages in text, making messages machine-readable yet invisible to the human eye. I remember passing notes in grade school. Oh, the thrill of exchanging ...

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 WhatsApp ‘crash code’ message is being circulated around the internet (Photo by Ali Balikci/Anadolu Agency/Getty Images) WhatsApp users should be wary of new ‘crash code’ messages being circulated ...