Patent ID: 7716717

Claim:
A communications security system to prevent transfer of selected communication transactions from an untrustworthy network to a trustworthy network, comprising: a server, connected to the untrustworthy network, configured to maintain a plurality of protection rules, each of which, when applied to a communication transaction, identifies that communication transaction to be a respective one of the selected communication transactions; and a portal, connected between the untrustworthy network and the trusted network, that is configured to: cooperate with the server to transfer the plurality of protection rules from the server to the portal via the untrustworthy network; receive a communication transaction from the untrustworthy network for transfer to the trustworthy network; apply one or more of the protection rules to the received communication transaction; and selectively transfer to the server at least a portion of the received communication transaction via the untrustworthy network if a protection rule identifies the received communication transaction to be a respective one of the selected communication transactions.