If you're in trouble and cannot find an answer to a question which goes beyond Stack Overflow...
If you have a not-so-usual solution for your problems but need to justify it to your boss...
If you like to think on your own rather than blindly follow "common wisdom" and "profound truth"...
...then 'No Bugs' Hare on Soft.ware might be the right place for you.
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Assorted Rants Tagged ‘multiplayer’, page 1:

Bot Fighting 201. Part 4. Obfuscating Protocols. Versioning.

Quote: “we can handle several Client versions (each with its own obfuscation) with the very same Server.”
Another Quote: “Then, if/when a zero-day bug is encountered in TLS – our obfuscation does provide additional protection even before the attacker can reach the code with that zero-day vulnerability”

Bot Fighting 201: Declarative Data+Code Obfuscation with Build-Time Polymorphism in C++

Quote: “Technically, what we’re looking for here, is any kind of bijection; we’ll use this bijection to convert our data from one representation into another one (and as it is a bijection, we can revert it later).”
Another Quote: “As we’re not writing our obf<> classes manually (instead, we have a code generator doing it for us on each build), the sky is the limit to the obfuscations we can generate.”

Bot Fighting 103. Code Integrity Checks, Code Scrambling

Quote: “Bingo! We’ve got an executable, which automagically performs TONS of integrity checks, which checks are spread all over the executable, and are extremely non-obvious too.”
Another Quote: “This approach of ‘not revealing code until attack costs are high’ is certainly not limited to payments.”

Bot Fighting 102: System-Specific Kinda-Protection. Anti-Debugger, Anti-DLL-Injection, VM Detection.

Quote: “it is fundamentally impossible to prevent (or detect) debugging, at least as long we’re staying on one single box.”
Another Quote: “DON’T spend more than 10% of your overall anti-bot-fighting time budget on system-specific protections.”