ISAC, the Intelligent System Analytic Computer, is the AI that guides players through Tom Clancy's The Division, released by Ubisoft in 2016. Throughout the game, ISAC intercepts encrypted enemy transmissions, and the encoded message sound marks the moment a scrambled communication starts decoding into usable intel. Clips of the game's audio spread across gaming soundboards as players stripped out clean sound effects, and the burst is now a handy shorthand for any moment of hidden information, espionage or tech-savvy mystery in short-form edits.