The Immunet Blog says they plan to “spread” as the Sourcefire Cloud Technology Group.

Over the past 2.5 years the team here at Immunet has built an amazing cloud platform to deliver next generation security technologies and raise the bar for AntiVirus protection. As a result, we’ve built a product that is 35 times smaller than our nearest competitor using an entirely new approach to fight today’s rapidly spreading threats — our Collective Immunity technology. After growing to over 750,000 users in just over a year, we have reached a stage in our company’s life where we needed to put our pedal on the gas and spread Immunet to the entire world.

The acquisition makes a lot of sense since Immunet has been producing a Windows version of ClamAV, which was acquired by Sourcefire in 2007.

Windows ClamAV users had already been redirected to Immunet support and *nix ClamAV planned to migrate to the same Immunet Cloud technology that boasted “NO virus updates required“. This acquisition confirms Sourcefire’s commitment at a business as well as a technology level.