Just try to get 16 witnesses to agree on anything. It is damn near impossible.
Just hijack the nodes. If they all run the same code, one exploit fits all.
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Just try to get 16 witnesses to agree on anything. It is damn near impossible.
Just hijack the nodes. If they all run the same code, one exploit fits all.
You can't just hijack a node, you need the private keys of 16 of the top 20 to do anything. Even if you hack all of the top witnesses you only need 6 to do a recovery of their keys to invalidate any malicious fork. It's not as simple as you are making it out to be.
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Witness node servers hold their own keys and very likely also their source code. Just add your patch, recompile, reboot to fork.