Hacker group, LulzSec Security has claimed that it has hacked into the website of an U. S. Federal Bureau of Investigation affiliate group.

The hacker group said that it infiltrated the web site of the Atlanta chapter of InfraGard and leaked its user base. The website was not accessible late Sunday and the users saw a message that it was "under construction" as the future home for the Atlanta InfraGard Member's Alliance.

InfraGard said it is a an association of businesses, academic institutions, state and local law enforcement agencies, and others who want to share intelligence to prevent aggressive acts against the country.

InfraGard as well as the FBI in Atlanta did not comment on the issue.