A single leaked hint exposed the CIA’s most puzzling code. But dozens of the world’s toughest ciphers are still waiting to be solved.

Think you can solve a mystery that’s been baffling researchers and treasure hunters for over two hundred years? If you do — and assuming it’s not all one big 19th century prank — you might be able to ...

An original World War II German Enigma machine, one of the most important cipher devices in history, will be offered in Rock ...

The concluding words of Unsolved! are a call to action. Craig Bauer, a US mathematician and editor-in-chief of the journal Cryptologia, ends his hefty history of cryptography by noting that even as he ...

Sam Blake, an Australian mathematician, first learned of the Zodiac Killer’s unsolved ciphers — a series of encrypted messages — from a documentary in the 1990s. His interest marginally increased in ...

Meghan Markle is being accused of using her royal status to promote her lifestyle business, As Ever. Keep reading for the ...

With the release of Destiny 2’s Season of Arrivals, there’s a whole host of new content for players to sink their teeth into. Alongside the new weapons and gear that players have come to expect, the ...

Marc Santos is a Guides Staff Writer from the Philippines. He's a seasoned writer with over four years of industry experience, and he is an enjoyer of all things difficult in gaming. If Marc's not ...