This week is RSA, the largest security conference in the world; this is the 1st year in a very long time I won’t be there but, this year Scott Charney included a focus on the Isolation of Infected Machines in his keynote.
The timing of this is excellent (for me) because a specification I worked on in the IETF around standardizing an evolution of one of the core protocols used in the Network Access Protection (NAP), the Microsoft uses in its product (and its own Networks) to isolate infected hosts on the network will be published tomorrow, in the meantime the final draft is here.