There is a Delphi WebSockets library (eSeGeCe WebSockets) with full source codes.
There is a hard-to-catch bug (or bugs) in it leading to memory corruption in rare cases
The goal is to do hardcore tests to find the bug. You will have to test it in heavy loaded multitheread environment, may be code own WebSocket server (using the same library) to test different situations: disconnects, protocol errors, so on
If you do find the bug, I will pay you more. If you dont, I will pay for the testing application
The library with full sources will be provided