But don’t be fooled. Now, 5 people are all it takes to violate ICANN’s trust-based security and pretend to be a root server, using an attack called “DNS poisoning” to bring down specific domain names.

To complete the attack, all one must do is pretend to come from a trusted IP address, which is very, very easy if you control the routers between the two endpoints. (*cough* AT&T)