For the technically inclined:
To avoid having to trust the node admin with your keys, run your own node to create wallet addresses and sign transactions.
Permanent and user friendly solution:
Rise team is porting ARK desktop wallets to Rise as was announced before. These wallets offer a secure way to create new wallet addresses and sign any transactions locally without exposing any private keys to a server node. The wallets will be made available for Windows, Linux and Mac.
Below a screenshot of our test version of Rise Desktop Wallet for Windows