Orome1 writes: "ESET discovered a social engineering Trojan horse that managed to steal the login credentials of more than 16,000 Facebook users. The 'PokerAgent' Trojan targeted Zynga Poker, the most popular online poker site in the world. Zynga Poker hosts the Texas Hold'Em Poker App for Facebook. According to APPData, the game has more than 35 million active monthly users. Specifically, the malware was designed to steal users' Facebook login details and link them with user information for the online poker game. ESET estimates that in addition to Texas Hold'Em Poker on Zynga Poker, other Facebook applications could have been similarly infected."