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Real-time network updates for malicious content

  • US 8,522,347 B2
  • Filed: 03/16/2010
  • Issued: 08/27/2013
  • Est. Priority Date: 03/16/2009
  • Status: Active Grant
First Claim
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1. A method for establishing the reputation of message components, the method comprising:

  • disassembling an electronic mail message into constituent components at a security appliance coupled to an end-user computing device that processes electronic mail;

    identifying a reputation for each of the constituent components, the identified reputation based on aggregated data specific to the constituent component and received from a data center;

    processing one or more of the constituent components at the security appliance using a hash process to create a thumbprint of the one or more constituent components; and

    transmitting the thumbprints from the security appliance to the data center for subsequent processing and distribution to other security appliances, wherein each of the transmitted thumbprints has a corresponding reputation.

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