Distributed denial-of-service attacks are mounting, so the Cloud Security Alliance formed the Anti-Bot Working Group to help fight this threat.
Microsoft blocks traffic and seizes domains owned by the notorious ZeroAccess botnet, while Europol moves in to physically take down the servers.
The attackers are using the "Pony" botnet command-and-control server software.
Microsoft and Symantec have touted taking down major botnets, but one expert calls their actions ineffective and aimed primarily at getting attention.
Mobile botnets are on the rise and cybercriminals are using the Google Cloud Messaging service to distribute malware, a new report says.
Hundreds of global organizations have been infected by a Russian botnet as part of a cybercrime campaign that could be connected to the mysterious traffic spike that hit the Tor anonymity system in August, security firm Websense says.
Poor updating and sometimes no updating is leaving large numbers of WordPress websites open to exploitation in cybercriminal campaigns, security experts report.
One of the largest botnets in existence has lost access to more than a quarter of the infected machines it controlled.
A new piece of information-stealing malware that appeared earlier this year has been rapidly gaining traction during the past few weeks, with hundreds of infection attempts being detected every day by antivirus vendors.