Data leak protection in upper layer protocols
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United States of America Patent
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Dec 29, 2015
Issued Date -
N/A
app pub date -
Sep 10, 2014
filing date -
Sep 10, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and systems for Data Leak Prevention (DLP) in a private network are provided. According to one embodiment, a data packet is received by a network security appliance. The data packet is originated by a first networking device within a network protected by the network security appliance and is directed to a second networking device that is outside the network. The data packet is decoded in accordance with an upper layer protocol through which the data packet is being transmitted. A command, request or method of the upper layer protocol that is specified by or represented by the data packet is determined. A field of the command, request or method, which is not designed for carrying a message or a file, is scanned for sensitive or confidential information based on a sensor rule. When the scanning results in a match, then an action associated with the sensor rule is performed.
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