This year may as well have been the year of the hacker. Members of Lulzsec, Anonymous and other hacker groups targeted the likes of Sony, Citigroup and the Turkish government, temporarily shutting down sites, leaking usernames and passwords, and publishing fake news stories. The mischief pointed out widespread weaknesses in computer security systems in the U.S., which increasingly relies on data networking for financial, transportation, telecommunications and military operations. According to a November 2010 report from the Center for Strategic and International Studies, the lack of cyber defense is in part due to a severe shortage of computer security specialists. The report estimates there are currently only some 1,000 people in the U.S. who have the specialized security skills to operate effectively in cyberspace, and somewhere between 10,000 and 30,000 people are needed in the field in order to meet the computer security needs of government agencies and large corporations.