A member of hacker group TeaMp0isoN (Team Poison) leaked personal information of U.K. Prime Minister Tony Blair, plus the phone numbers and addresses of dozens of members of the government who allegedly supported the war on Iraq, on Friday night.

A member of hacker group TeaMp0isoN (Team Poison) leaked personal information of U.K. Prime Minister Tony Blair, plus the phone numbers and addresses of dozens of members of the government who allegedly supported the war on Iraq, on Friday night.

Team Poison, described as "professional hackers" in an interview with FoxNews.com, said it had the information for a year now, according to the Twitter feed of TriCk, a member of the group.

TriCk posted the list on Friday night, which included the National Insurance number of Tony Blair, the phone number of 10 Downing Street, plus the alleged phone numbers and addresses of some of Blair's contacts, including Lord and Lady Irvine and Denis MacShane, Baroness Thornton, the MP for Rotherham. MacShane's name was misspelled "McShane," however.

The information was obtained in Dec. 2010, TriCk posted. "We still have access to the Webmail server, phone numbers may have changed but all the information is 100% legit."

"Tony Blair's Private Info is getting leaked tonight, so is his Personal Adivsors CV and UK MPs & Lords who supported the war in iraq," TriCk posted to his Twitter feed earlier on Friday.

"doing the writeup now - Tony Blair and his cockroaches are getting owned tonight. - War IS Terror. -" TriCk added just before press time.

"iv always said i was a blackhat, so cut all ur bullshit whitehat talk -- kthxbye," he wrote.

Hex, another member of the group, has also claimed that Team Poison would also try and reveal the identities of the LulzSec group, according to the FoxNews interview. "th3j35t3r" (The Jester) who claims to be a "hacktivist for good" has also highlighted documents that claim to reveal the identity of one of the members of the LulzSec group, known as "Sabu".

With the last year, formerly shadowy hacking groups have seemingly begun seeking the spotlight, forming Twitter feeds, Web sites and press releases, and even doing interviews with the media. Relationships between the groups seem to fluctuate; at one point, LulzSec and Anonymous seemed to consider themselves rivals, then joined forces to attack .

Team Poison, meanwhile, appears contemptuous of LulzSec. "We're here to show the world that they're nothing but a bunch of script kiddies," Hex0010, a 23-year-old member of TeaMp0isoN, said in the FoxNews.com interview.

"iN^SaNe", another member of Team Poison, also said that the Blair documents would be released. "We don't release stuff which cause problems for innocent people, we do it to those who deserve it," he wrote on Twitter.

And TriCk spent much of Thursday night taunting "anonymouSabu", presumably the "Sabu" identified in the leaked document. TriCk also addressed "anonymouSabu" several times as Saad Naveed.

LulzSec, meanwhile, Thursday night, which authorities later confirmed as genuine, sensitive, but not confidential, according to reports.

This week, London police a 19-year-old man for several high-profile cyber attacks that could be connected to hacker group LulzSec. He was later identified as Ryan Cleary of Wickford, and charged with bringing down the Web sites of the Serious Organised Crime Agency, the International Federation of the Phonographic Industry (IFPI), the British Phonographic Industry, via a DDoS attack. He was also charged with two counts of conspiring to distribute a computer program to form a botnet and a DDoS network.

Anonymous, meanwhile, has largely gone quiet, noting only that the Federal Bureau of Investigation seized multiple servers in a raid on a Reston, Va. data center as the agency looked for evidence of LulzSec.

Editor's Note: This story was updated at 3:47 PM PT after Blair's personal information and contact list was posted.