Identifying unwanted electronic messages
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United States of America Patent
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-
Jan 29, 2008
Grant Date -
Oct 31, 2002
app pub date -
Jan 31, 2002
filing date -
Apr 30, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An unwanted message may be identified by inspecting the payload portion of a message being communicated, comparing the characteristics of the payload portion with stored data indicating characteristics of other messages, and identifying a security condition based on a comparison of the message inspected. The characteristics inspected may include the payload portion of a message or the whole message when the characteristics are being compared against messages being exchanged on more than one local exchanging system. Furthermore, the characteristics of messages may be tracked for comparison against the characteristics of future messages. A threshold number of those characteristics may subsequently implicate a hostile security condition, even if a current comparison of these characteristics does not reach the threshold necessary to implicate a hostile security condition.
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