Nearly four years after it burst onto the malware scene, the notorious Grum spam botnet has been disconnected from the Internet. Grum has consistently been among the top three biggest spewers of junk ...

KrebsOnSecurity has obtained an exclusive look inside the back-end operations of the recently-destroyed Grum spam botnet. It appears that this crime machine was larger and more complex than many ...

Grum–the third largest botnet in existence, and the source of nearly twenty percent of all spam traffic online–has been taken offline by authorities. In some ways the takedown is significant, but it ...

The Grum botnet, which experts believe is responsible for about 18 percent of the world's spam email traffic, has been shut down, according to security company FireEye, based in Milpitas, Calif.

The world's third-largest spam-generating network was knocked offline Wednesday, according to a security researcher who was directly involved with the takedown of the once formidable Grum botnet's ...

As Spring cracked the Moscow frosts and March rains doused the streets, a computer in an innocuous server farm somewhere in the heart of the city winked to life. It was 2007, a year when many people ...

One of the world’s most active spam botnets — Grum — was crippled after two of its command and control (CnC) servers hosted in the Netherlands were taken down, according to researchers from security ...

A major spam botnet that inundated email inboxes around the world with emails promoting fake prescription drugs is gone. So says the security firm that helped kill it. "The Grum botnet has finally ...