Company: Yahoo 

Before email scanning was the hot privacy violation among tech behemoths, companies were selling information from message boards to the highest bidder. As far back as 1999, the ACLU was bringing civil suits against Yahoo for privacy violations on their message boards. One of the earliest suits was filed in the US District Court of Los Angeles on behalf of financial message board user "Aquacool_2000." Nothing says 1999 quite like that username.