Hackers calling themselves NetDevilz temporarily hijacked the sites of key organizations that control routing of Internet traffic and redirected them to a taunting page.

Visitors to the sites for the Internet Assigned Numbers Authority (IANA) and the Internet Corporation for Assigned Names and Numbers (ICANN) were temporarily redirected Thursday morning. The sites affected were iana.com, iana-servers.com, icann.com and icann.net, according to researchers at Zone-h.org, which monitors attacks.

A message at the bogus site said, "You think that you control the domains but you don't! Everybody knows wrong. We control the domains including ICANN! Don't you believe us?"

IANA is responsible for managing the domain-name root system that translates domain names like newsfactor.com into IP addresses. ICANN oversees IANA.