Cipher Brief experts take a new look at an unseen ‘war’ being waged – after two months of the Trump administration.

Wang Yaxin is the voice behind Cipher’s Chinese version. Here are some of the most notable roles done by the VA: Cipher’s ...

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 ...

made it an immediate success as a field cipher, used by the British in the Boer War and the First World War, and by several armed forces as an emergency back-up cipher in the Second World War.