Facebook has managed to win a $873 million verdict against a Canadian citizen who showered users with millions of unsolicited messages about drugs and adult material. Jeremy Fogel, the U.S. District Judge, signed the judgment papers last Friday, resolving a lawsuit that Facebook filed in August against a Montreal resident, Adam Guerbuez and his business called Atlantis Blue Capital. Facebook stipulated that Guerbuez had tricked users into disclosing their passwords so he could send them and their friends more than 4 million messages that included promotions for marijuana.

Facebook, the Palo Alto-based company predicted the judgment will be difficult to collect on, but is hoping that its size discourages future abuses at its website.