Microsoft has announced that starting in October, small businesses can begin using Microsoft Security Essentials on up to 10 PCs in their company at NO COST to provide them with protection from viruses, spyware and other malicious threats.  Prior to this licensing change, Microsoft Security Essentials was offered free for consumer use only. The announcement posted on Eric Ligman’s blog this morning: Announcing: Microsoft Security Essentials available FREE to Small Businesses in October!