IT WAS CALLED the Casino virus. If it infected your machine, it would remove all files from your hard drive and challenge you to a game. “I’m giving you a last chance to restore your precious data,” it would say. “Your data depends on a game of Jackpot.”
It presented a kind of digital slot machine, and you had just five chances to spin those digital wheels and land on three matching monochrome icons. If you didn’t, Casino berated you with shockingly salty language before deleting your data forever.