Patent ID: 8432570
Filing Date: 2013-04-30
Classification: G06Q

Abstract:
1. A computer-implemented method comprising: identifying, by a computer system, a plurality of documents to be scanned for sensitive information according to at least one data loss prevention (DLP) policy, the plurality of documents being associated with a bit array; generating a key of the document; for each of the plurality of documents, applying a set of functions to the key of the document, wherein outputs of the functions in the set of functions map the key to positions in the bit array; identifying a plurality of positions in the bit array that correspond to the outputs of the functions in the set of functions; when values of all of the plurality of positions in the array indicate that the document has already been scanned, refraining from scanning the document; and when a value of at least one of the plurality of positions in the array indicates that the document has not yet been scanned, scanning the document for sensitive information according to the DLP policy.