Immunet was previously provided by Sourcefire in two editions, Free (for personal use), and Plus (for commercial use). As of June 10, 2014, the commercial version was discontinued, though Cisco (having acquired SourceFire) continued to support the free version. At version 3.0 , Immunet Free offers protection based upon the virus definitions in the cloud, and an option to include the
ClamAV off-line virus definitions for use when not connected to the Internet. Immunet advises that the free version be used alongside another antivirus program, and supports several particular such programs in the sense that they co-install properly and work in tandem during normal operations without any obvious interference or resource drag. This is a significant difference between Immunet and other contemporary antivirus products. == Effectiveness ==