Frosty0705 If you refer to smart contracts then technically that wrong because smart contracts are off chain feature and smart contract can not be secured by any POW. Perfect example is the Eth POW pre POS.
Transactional data is on block chain anyway so is secured but the smart contract state and the script/code is off chain, this is the main reason why we see exploits and need for audits. The newest add on feature that EVM chains implement is defender for smart contract with this probably the audits will be no need but I am not sure if this Anti-virus type tool will work well.
