Four additional took place in The Netherlands and in Great Britain. The arrests in the U.S. are the result of a total of 35 search warrants in New York, California, Florida and Nevada, the FBI said.
However, the arrests are not tied to the recent wave of attacks, but to hacking activities that were launched in support of Wikileaks, and apparently especially the DDoS attack against PayPal following their decision not to forward donation to Wikileaks in December 2010. There have been few details, but the FBI said that one 21-year old hacker broke into a web server of InfraGard and another 21-year-old hacker broke into a server of his employer, AT&T, and downloaded thousands of files. All of those files were later published by LulzSec.
The age of the arrested hackers ranges from 20 to 42 years. All are facing up to 10 years in jail and fines up to $250,000 each.
The four arrested hackers in The Netherlands are aged 17 to 35 and are suspected to be members of the hacker group AntiSec NL, which is considered to be part of Anonymous.