Ethereum is designed to be compatible with smart contracts, which are self-enforcing contracts you can write in Solidity. This means that the code on the Ethereum blockchain is organized in a way that it’s possible for any node on the network to verify whether or not conditions defined in this contract have been met.
Once verified by enough nodes, smart contracts become irreversible. Therefore, there’s no need to trust us when someone says they “hacked” your account or withdrew too much money earlier today. You’d know that person has broken the law and must then figure out how to prevent their actions in future by yourself if needed (as opposed to having them removed from the network). Our entire history of transactions becomes open for review so anyone can see what happened during each transaction at any time – thus making it completely transparent unlike traditional financial systems where huge amounts of information are kept private due to regulatory concerns like KYC/AML laws (and they’re even more secretive about proprietary software they create). It allows you to restore wallets at any time (when storing cryptocurrency) without fear of losing funds forever since they’re recorded on the blockchain forevermore. Everything gets audited automatically soon after every block is mined! Since most people only run an Ethereum client locally (on their workstation), its easy once you download all these blocks onto your computer (or mobile phone), simply apply these rules they never change unless new forks surface which makes it easy for everyone else who wants access to use