zkSync is a new, but safe, scalability solution built on Ethereum. However it is not possible currently from many exchanges (Coinbase, Binance, etc) to directly send funds to a zkSync address.
If you wish to transfer your existing crypto to Argent from a centralized exchange, you will need to:
- First, check that the token is supported on the zkSync network
- Secondly, transfer the token to an Ethereum wallet (such as your Argent Vault, hardware wallet or MetaMask) and then deposit from Ethereum to zkSync. This can be done via your user page ( https://<myname>.argent.xyz )