And when GH2 is released as open source it still needs to be secure from someone who has created their own version with all checks removed. This is in fact already possible since Grasshopper itself can be disassembled, modified, reassembled and even modified in its compiled state using libraries such as Mono.Cecil
If you’re trying to protect your files against non-programmers, clusters with passwords are enough, if you’re trying to protect your files against programmers, you’re in the wrong Universe.