On April 25, Spanish police, at the request of Holland's national prosecutor's office, arrested Dutch citizen Sven Olaf Kamphuis. Kamphuis will likely face charges in Holland related to what Dutch officials describe as the most extensive criminal cyberattacks in the history of the Internet. The attacks, which occurred in mid-March, overwhelmed the website of Spamhaus, a European nonprofit organization that tracks computer viruses (malware) and spam (unwanted email). Spamhaus had blacklisted Kamphuis' Internet company, CyberBunker. Spamhaus alleged that CyberBunker provided hosting services for spammers. The attacks (distributed denial of service, DDOS attacks) not only denied Internet users access to the...