Abstract: Method and apparatus for protecting a remediated computer network during reconnection of a previously disconnected computer system. Upon initiation of reconnection to the computer network, the previously disconnected computer system raises a firewall to temporarily limit exchanges between the computer system and the remediated computer network until after a client remediation server residing on the computer network has resolved vulnerabilities of the computer system. The limitations on exchanges between the computer system and the remediated computer network are then removed by lowering the firewall.