Locating documents for providing data leakage prevention within an information security management system

A non-transitory, computer readable storage medium having instructions stored thereon that, when executed by a computer implement a method for locating documents for providing Data Leakage Prevention (DLP) within an Information Security Management System (ISMS), the ISMS having a plurality of entities capable of storing documents, the method comprising:

• on each entity of the plurality of entities, calculating a respective fingerprint for each document of the documents stored on the entity;
• transferring the calculated fingerprints by the entities to a data localization server having a fingerprint database for storing the transferred fingerprints;
• and
• at the data localization server, locating copies of a specimen document by calculating a fingerprint of the specimen document and comparing the calculated fingerprint of the specimen document with the fingerprints stored in the fingerprint database.