Spanish officials have arrested a Dutch citizen in northeast Spain for his involvement in what has been called the biggest cyberattack in Internet history. The suspect is said to have operated a hacking bunker in a van that was equipped with “various antennas to scan frequencies” that he used to evade authorities. The unnamed individual, who was only identified by his initials S.K., is accused of launching several large denial-of-service attacks on Internet servers in the Netherlands, United Kingdom and the United States, and also of attacking Spamhaus, a Swiss-British watchdog group that blocks spam advertisement for counterfeit Viagra and fake weight-loss pills from reaching Internet inboxes. The Associated Press reports that the 35-year-old male was arrested in the city of Granollers on Thursday by Spanish authorities acting on an arrest warrant issued by Dutch authorities. The suspect is expected to be extradited from Spain to the Netherlands where he will stand trial.