bot herd

English

Noun

bot herd (plural bot herds)

1. (Internet, computer security) A large collection of compromised systems exploited for malicious purposes.
   • 2005 September 19, “Hackers target net call systems”, in BBC Online‎:

     So-called bot herds - networks of compromised PCs under the control of a malicious hacker - continue to be used as launch pads for other types of attack