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Déjà Vu: Uncovering Stolen Open-Source Algorithms in Commercial Products

Patrick WardleTom McGuire

Patrick Wardle and Tom McGuire expose commercial security vendors who covertly copied open-source macOS security tools into commercial enterprise products.

Summary

The Ethics of Open-Source Security Software

Open-source security tools (such as Objective-See macOS utilities) are created for the public good, but commercial vendors often incorporate them without attribution or license compliance.

Discovering Code Plagiarism via Reverse Engineering

Patrick Wardle and Tom McGuire reverse engineer commercial macOS endpoint security products, identifying identical disassembled functions and decompiled logic.

Comparing Open-Source Engines with Commercial Binaries

The speakers present side-by-side binary diffing analysis demonstrating that proprietary endpoint agents directly lifted open-source behavioral monitoring engines.

Community Accountability and Legal Ramifications

The authors discuss intellectual property protection, GPL license enforcement, and building ethical accountability across the cybersecurity industry.

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