OpenDLP – Free & Open-Source Data Loss Prevention (DLP) Tool

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OpenDLP is a free and open source, agent-based, centrally-managed, massively distributable data loss prevention tool released under the GPL. Given appropriate Windows domain credentials, OpenDLP can simultaneously identify sensitive data at rest on hundreds or thousands of Microsoft Windows systems from a centralized web application. OpenDLP has two components: a web application and an agent.

Web Application

  • Automatically deploy and start agents over Netbios/SMB
  • When done, automatically stop, uninstall, and delete agents over Netbios/SMB
  • Pause, resume, and forcefully uninstall agents in an entire scan or on individual systems
  • Concurrently and securely receive results from hundreds or thousands of deployed agents over two-way-trusted SSL connection
  • Create Perl-compatible regular expressions (PCREs) for finding sensitive data at rest
  • Create reusable profiles for scans that include whitelisting or blacklisting directories and file extensions
  • Review findings and identify false positives
  • Export results as XML
  • Written in Perl with MySQL backend


  • Runs on Windows 2000 and later systems
  • Written in C with no .NET Framework requirements
  • Runs as a Windows Service at low priority so users do not see or feel it
  • Resumes automatically upon system reboot with no user interaction
  • Securely transmit results to web application at user-defined intervals over two-way-trusted SSL connection
  • Uses PCREs to identify sensitive data inside files
  • Performs additional checks on potential credit card numbers to reduce false positives

You can download OpenDLP v0.1 here:


Or read more here.

Posted in: Forensics, Hacking Tools, Privacy

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5 Responses to OpenDLP – Free & Open-Source Data Loss Prevention (DLP) Tool

  1. Jon May 4, 2010 at 2:22 pm #

    OK, so how do we know this thing doesn’t “phone home” with this sensitive information? I understand it’s just a convenient location, but hosting this development project on a google site isn’t filling me with confidence about the privacy of my data.

    Cool idea, but I think I’ll pass.

    • Boni May 4, 2010 at 5:27 pm #

      You don’t have to use it.. you could always trust your DLP solution to be in the hands of a closed source application run by another big corporation ?

    • Anonymous Coward May 4, 2010 at 10:33 pm #

      It phones home to the web application that you specify in the policy that you have to create.

    • Anonymous Coward May 4, 2010 at 10:34 pm #

      It is also open source (GPL), so you can see that it only “phones home” to whatever URL you specify.

      • Ǟnṏnÿmöṳs Cöẅärd May 6, 2010 at 8:28 pm #

        yeah it fonez home to the specified url, and the FSF via covert means