A very large botnet named “Mariposa” was recently shut down with the arrest of 3 of the main administrators. More arrests are expected in other countries.
Mariposa is said to have as many as 12.7 million compromised computers (Zombies) worldwide. The software acted as a Trojan horse and captured login credentials for online bank accounts. Following the arrests, police recovered personal information of more than 800,000 people. Zombies were in many of the Fortune 1000 companies as well as in 40 major banks. The Mariposa Working Group, which is a coalition of security experts, academics and law enforcement, were the ones who got it shut down.
[...] three guys that were arrested for the Mariposa botnet may never go to [...]