A handful of vendors have demonstrated a technique to help companies more easily secure a rising number of Internet Protocol devices accessing their private business networks. ArcSight, Aruba, Infoblox, Lumeta Networks and Juniper have demonstrated a new protocol to link to a common security database. The protocol, called IF-MAP, is at the core of the Network Access Control 2.0 standard just published by the Trusted Computing Group, a broad ad hoc security organization devoted to security. The new protocol defines a standard interface to a common shared database of who is on a network and what each node is doing.