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OwnerMichael R. Andrews, Gregory P. Kochanski +2inventors
InventorsMichael R. Andrews, Gregory P. Kochanski, Daniel Philip Lopresti, Chi-Lin Shih
Estimating the term…
E-mail which may be infected by a computer virus is advantageously filtered by incorporating a “Reverse Turing Test” to verify that the source of a potentially infected e-mail is human and not a machine, and that the message was intentionally transmitted by the apparent sender. Such a test may, for example, involve asking a question which will be easy for a human to answer correctly but quite difficult for a machine to do so. The e-mail may be deemed to be potentially infected based on an analysis of executable code which is attached to the e-mail, or merely based on the fact that executable code is attached. The e-mail may also be deemed to be potentially infected based on additional factors, such as, for example, the identity of the sender and past experiences therewith. Spam E-mail may also be advantageously filtered together with virus-containing e-mail with use of a single common filtering system.
An automated method for filtering electronic mail, the method comprising:
An automated method for filtering electronic mail, the method comprising receiving a plurality of incoming electronic mail messages;
An automated electronic mail filter comprising:
Dependencies are inferred from the claim text.