A computer-implemented method and apparatus prevents unsecured access to a computer over a network by a client running on a remote computer. In one aspect of the present invention, a client policy is stored on the remote computer. The client policy includes a configuration of the remote computer that...http://www.google.com.hk/patents/US7725589?utm_source=gb-gplus-share專利 US7725589 - System, method, apparatus, and computer program product for facilitating digital communications