The young English hackers who breached the security protocol of high-profile websites last year admitted guilt on Monday before a British court but denied that they were part of another pack which obtained personal information then made them public.
British news agency Press Association identified the suspects as 20-year-old Ryan Cleary and 19-year-old Jake Davis, both of whom tagged by authorities as part of the loosely organised hacking team LulzSec, which gained fame in 2011 by intruding on sites maintained by giant companies and governments.
Reuters reported on Tuesday that the duo with two other unidentified collaborators went on hacking rampage last year targeting corporate sites mainly based in the United States and the United Kingdom.
LulzSec was also successful in paralysing the official sites of many government agencies in a number of countries, including the premier intelligence arm of the U.S. government, the Central Intelligence Agency (CIA).
The two were charged Monday before the Southwark Crown Court in London, Press Association said, a year after the hacking group Anonymous launched campaigns that exposed the vulnerable security protocol of key global companies, which include global defence contractor Lockheed Martin and Japanese gaming site Sony PlayStation Network.
Activities attributed by cyber security experts to Anonymous led to the disclosure of people's personal information, which hackers obtained from corporate databases.
Mr Cleary and Mr Davis, however, disavowed their association with Anonymous and admitted only of concentrating their cyber attacks employing a technique termed by experts as distributed denial of service or DDoS.
The tactic, according to experts, deploys overwhelming hits on a targeted website, flooding its server with heavy traffic thereby causing it to crash.
Mr Cleary, Reuters said, will also face charges before a United States court following his earlier admission that he launched attacks on computers located in America's military headquarters, the Pentagon
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