That Time Stargate: Universe Hid Cryptographic Messages In Plain Sight

"Human" is a Stargate: Universe episode that revolves around mathematician Dr. Rush trying to crack a code. "I loved Rush's crazy scribbles of nonsense and the light code imagery," Meredith wrote in io9's original recap. Only it wasn't nonsense – it was real cryptography with consistent, breakable codes. » 9/14/14 11:14am 9/14/14 11:14am

Ten Steps You Can Take Right Now Against Internet Surveillance

One of the trends we've seen is how, as the word of the NSA's spying has spread, more and more ordinary people want to know how (or if) they can defend themselves from surveillance online. But where to start? » 10/27/13 10:00am 10/27/13 10:00am

How the U.S. Cracked Japan's 'Purple Encryption Machine' at the Dawn of…

When one thinks about cryptography or encryption in World War II, the first thing that comes to mind is the Enigma Machine used by the Nazis, whose code was broken by the Allies and used as a secret tactical advantage. But what many people don’t know is that just before World War II, the Japanese also developed a… » 3/22/13 3:00pm 3/22/13 3:00pm

Did a Canadian hobbyist just crack the World War II carrier pigeon…

Early last month we told you about the recent effort to decrypt a secret World War II message found on the remains of a military pigeon. Since work started the team has made zero progress and they're completely stumped. But now, the editor of a local history magazine in Ontario is claiming that he's deciphered the… » 12/17/12 12:45pm 12/17/12 12:45pm

Remains Of World War II Military Pigeon Ignites Code Mystery

Back in 1982, David Martin discovered the remains of a pigeon while renovating his chimney. Upon closer inspection he noticed that the dead bird had a red capsule attached to its leg, what has now been confirmed as a top secret message that was en route to an unknown location in Britain during World War II. Ignored… » 11/02/12 3:01pm 11/02/12 3:01pm

We can encrypt secret messages in opal

A special kind of lab-created opal can be used to carry several encrypted messages at the same time. Find out how it can keep secrets for someone — and tattle on that same person — depending on what you spray it with. » 12/06/11 7:00am 12/06/11 7:00am