Yes, people can use allbridge, plenty, or the tezos shielded pool to send ETH to multiple addresses. However, it is important to note that these methods are not foolproof and can still be vulnerable to hacking. Additionally, it is important to ensure that the volume of transactions does not reach the level of Tornado Cash, as this could create a situation where the system is overwhelmed and unable to process the transactions. To further secure transactions, it is recommended to use a decentralized exchange (DEX) to ensure that the transactions are secure and private. Additionally, it is also important to use a secure wallet to store the ETH and other assets to ensure that the funds are secure and protected.