Crack intro
A crack intro, commonly abbreviated as cracktro, is a small introduction sequence added to keygens and cracked software aimed to inform the user which cracking crew or individual cracker removed the software's copy protection and distributed the crack or keygen. == History == Crack intros first appeared on Apple II computers in the late 1970s or early 1980s, and then on ZX Spectrum, Commodore 64 and Amstrad CPC games that were distributed around the world via Bulletin Board Systems (BBSes) and floppy disk copying.