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Cloud based data loss prevention system

  • US 10,498,748 B1
  • Filed: 12/08/2016
  • Issued: 12/03/2019
  • Est. Priority Date: 12/17/2015
  • Status: Active Grant
First Claim
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1. A system for providing data loss prevention services to an enterprise operating an enterprise data network, the system comprising:

  • a computing system deployed outside of the enterprise data network, the computing system comprising a first computing cluster having at least one hardware processor and a second computing cluster having at least one hardware processor,wherein the first computing cluster comprises an indexer system configured to receive a pre-index containing first hash values of known non-malicious structured data formed using a forward hash function and a key and to generate a search index based on the pre-index, the search index being stored at a remote storage site; and

    wherein the second computing cluster comprises a detection system configured to receive the search index from the remote storage site, to receive network data content being sent from or being sent to the enterprise, to apply the forward hash function based on the key to the network data content to form second hash values, to determine that data that should not be outside the enterprise is outside the enterprise when one or more of the second hash values match one or more of the first hash values using the search index, and to generate an alert indicating data that should not be outside the enterprise is outside the enterprise in response to determining that a match exists.

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