Earlier this week, Activision began a massive Call of Duty ARG to tease and reveal Call of Duty 2020 (commonly understood to be Black Ops Cold War). The initial steps of the puzzle, which you can ...

Codemoji from Mozilla lets you send messages that — even if they’re intercepted — are meaningless unless you know how to decipher them. Each emoji scrambles letters differently. Know what I’m saying?

We seem to have an instinctive fascination for mysteries and, especially, for mysteries that revolve around secret codes. This penchant brought about a publishing sensation in 2003-Dan Brown's novel ...