Tor (The Onion Router) Open To Attack

A group of researchers have written a paper that lays out an attack against Tor. The essential avenue of attack is that Tor doesn't verify claims of uptime or bandwidth, allowing an attacker to advertise more than it need deliver, and thus draw traffic. If the attacker controls the entry and exit node and has decent clocks, then the attacker can link these together and trace someone through the network.

Link is to PDF research paper. Download the paper HERE.