Here's your chance to crack ciphers similar to those Bletchley Park's codebreakers faced during World War II. Below, we present three ciphers of different levels of difficulty, from easiest to most ...

You could do worse than to confuse the meanings of "code" and "cipher"—even cryptographers sometime use the terms as though they had the same meaning. There is, however, a definite distinction between ...

The cipher controversy is back. The Intercept, an American media outlet known for unearthing secret documents, has claimed to have got hold of the text of the cipher that was at the centre of Imran ...

To get a hint of the monstrously difficult task undertaken by the Venona code breakers, consider all the elaborate steps that Soviet agents took to encrypt a secret message. Here’s how it worked, as ...

The BitLocker encryption method and Cipher strength you set as default is only applied when you turn on BitLocker for a drive. Any changes you make will not affect a drive already encrypted by ...

This brief message, which former NASA administrator George Low named ‘The Martian Cipher’, was intercepted in 1969. It took the space agency almost 50 years to decode it. This deciphering is arguably ...

Abu Yusuf Yaqub ibn Ishaq as-Sabbah al-Kindi was a man of many disciplines, born in Kufa, Iraq around 801 AD. He was raised in Basra and educated in Baghdad. There his scholarship brought him to the ...

This puzzle is very simple when you know what to do. After you solve the keypad fingerprint puzzle and make your way into the unlocked room, you can find a computer terminal around the corner on the ...