The Ethereum blockchain is very safe. This is because of the many features, including security protocols, decentralized consensus, and smart contracts. Additionally, the Ethereum blockchain is open source, which means that anyone can audit it. This enables the source to be monitored by the users and the community. Additionally, being open-source does not interfere with its security because the entire program is decentralized. Because of this feature, all the users and clients have to approve a particular decision.