Man arrested for 'biggest ever' cyberattack

AFP - A Dutchman has been arrested in Spain in connection with last month's unprecedented cyberattack that reportedly slowed down the Internet, the Dutch prosecution service said.

The 35 year old identified only as S.K. was arrested in Barcelona and the house where he was staying searched by Spanish police, said a statement.

"He is suspected of involvement in the attack and so the prosecution service asked for his arrest," spokesman Wim de Bruin told AFP on Saturday.

Last month's attack targeted Spamhaus, a Geneva-based volunteer group that publishes spam blacklists used by networks to filter out unwanted email, and led to cyberspace congestion.

Spamhaus blamed the attack on Dutch web-hosting service Cyberbunker.

A source close to the investigation said that suspect S.K. was Sven Olaf Kamphuis, who acted as a spokesman for Cyberbunker at the time of the attack.

Kamphuis describes himself on his Facebook page as Minister of Telecommunications and Foreign Affairs for the Cyberbunker Republic.

De Bruin declined to speculate on whether further arrests would be made.