A Measurement Study of Attacks on BitTorrent Seeds
The authors study a natural and potentially devastating attack against BitTorrent, namely, attacking the initial seed in a torrent's early stages. The goal of this attack is to diminish the seed's ability to upload blocks. If the attacker can discover and react quickly enough to the new torrent, it can possibly "Nip the torrent in its bud," preventing all of the leechers from obtaining the entire file. They consider two natural seed attacks: the bandwidth attack and the connection attack.