In February 2005, 800 players were banned from the card game Tetra Master and from Final Fantasy XI for monopolizing areas where high level items and monsters would spawn, making it impossible for other players to become stronger.[13] In March 2009, Square Enix announced a new security system for players beginning April 6, 2009, involving a security token players could purchase for $9.99 and including an in-game bonus called a "Mog Satchel".[14] On April 9, 2005, a distributed denial of service attack against PlayOnline's servers shut down Final Fantasy XI access for players in North America and Europe for three hours: the attack continued for over a week, leading Square Enix to involve law enforcement.[15] At the time, Square Enix did not reveal if the Japanese server which hosted Front Mission Online, Fantasy Earth, and Japanese players of EverQuest II were affected.[15]