Contracts and their security (or lack thereof)

falxfalx Member Posts: 6
What prevents an attacker from patching the VM, injecting code that watches for specific conditions (the execution of a high value contract for example) for the purpose of hijacking and modifying the parameters of said execution to it's own advantage and then simply sitting and waiting in the network for his node to be selected to execute the contract of interest ?

Comments

  • astroastro Member Posts: 16
    Full nodes are modifying their local copy of the Blockchain when executing the Bytecode. Since all nodes must reach consensus on the state of the Blockchain, a single node manipulating its own copy of the chain is not going to effectively alter the entire network.
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