I have some concerns regarding zkSync terms of service (https://zksync.io/legal/terms.html#your-use-of-zksync).
"You release us from all liability related to any losses, damages, or claims arising from: (a) user error such as forgotten passwords, incorrectly constructed transactions, or mistyped Virtual Currency addresses; (b) server failure or data loss; © unauthorized access to the zkSync application; (d) bugs or other errors in the zkSync software; and (e) any unauthorized third party activities, including, but not limited to, the use of viruses, phishing, brute forcing, or other means of attack against zkSync. "