On Friday, The hacking collective known as Anonymous announced it had taken down several Turkish government Web sites with a distributed denial of service attack. In response, the Turkish police force today announced it had arrested 32 Anonymous members in a dozen cities around the country. The hackers had reportedly targeted the government in retaliation for a new set of Internet filters set to become a requirement for Internet service providers in Turkey. The arrest comes just days after Spanish police nabbed three alleged members of the group for, among other things, participating in a hack on Sony's Playstation Network (though apparently not the attack in April that exposed some 77 million users' data). In its report on the Turkish arrests, The Guardian outlines the government's new filtering system:

These are labelled "domestic", "family", "children" or "standard", but hacker activists gathered under the Anonymous umbrella claim they will lead to state control of individual internet use, and allow authorities to keep records of such use.

Naturally, Anonymous has not gone silently. The Turkish government site http://tib.gov.tr/, which Anonymous mentioned as a target in its Friday post, is still unavailable. However, the site http://www.sgk.gov.tr/ does appear to be in order. But Turkey was not Anonymous's only target over the weekend. A retaliatory hack into the Spanish Police's Web site after Friday's arrest reportedly knocked the site offline for about an hour early Sunday morning. Police wouldn't confirm that the attack was the work of the so-called hactivist group, but Anonymous had warned the organization on Friday to "expect us."

The police site seems to be functioning fine now (the above image comes from the Anonymous blog). 

In a separate attack on Friday, the hacking group Lulz Security, which has reportedly been linked to Anonymous, breached the user database of the (very NSFW) pornographic web site pron.com, and released some 26,000 e-mail addresses and passwords on its own Web site.