Apple has a little-known security feature, often described as a hidden 'secret code,' that can reveal if someone is snooping on your private conversations. Every iMessage chat generates a unique ...

Add Yahoo as a preferred source to see more of our stories on Google. A vintage dress purchased at an antique shop a decade ago contained a hidden code that has baffled people for a decade. The code ...

The 35-year-old saga of Kryptos, an enigmatic sculpture containing four encrypted messages outside the headquarters of the U.S. Central Intelligence Agency, recently took a bizarre twist.

For nearly a decade, sleuths had tried to decode a cryptic note discovered in the silk bustle dress. An analyst finally cracked the case. By Livia Albeck-Ripka See more of our coverage in your search ...

Mathematics has always been at the core of securing information. From online banking to government communications, modern society relies on cryptography, in which complex mathematical algorithms ...