Recover hidden logic from a compiled app with no source code

Rob builds a Mac app with a hidden unlock code, strips its names, and has his coding agent use the REA MCP server to recover the rules from the binary, then checks them against the source.

Rob Shocks · YouTube · published Oct 9, 2026 · Security, Science & Hardware

Recover hidden logic from a compiled app with no source code — video by Rob Shocks▶ Watch on YouTube
Prompt
Using the REA MCP server, analyze [compiled app path] and explain how [feature, e.g. the unlock code check] works. Only analyze software I own or am authorized to inspect.

How to try it

  1. Open REA.
  2. Copy the prompt and fill in the [placeholders].
  3. Watch Rob Shocks's video for the full walkthrough and setup.

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