When a World of Warcraft bug accidentally created a virtual pandemic
On September 13, 2005, Blizzard added a raid to World of Warcraft with a boss, Hakkar the Soulflayer, who cast a debuff called Corrupted Blood that spread between nearby players. It was only meant to last inside that one dungeon. A programming oversight let it escape into the rest of the game world instead.
Players fast-…
