How does wallet works? I need to send coins from my exchange to wallet address? So, I have coins still online, in my online Waves wallet.
Is possible to save coins on hardware which is not connected to web? For me it's the same if I have coins on exchange or in online wallet. Everything is not safe.
Just download the dekstop wallet and cut off your connection to the internet and that will be a good way for you. Or you can try to get the seed and save your seed in the safe place and you can open your seed anytime and that gives you a possibility to access your wallet.
Saving your seed is compulsory for waves wallet as they can't get your tokens through private keys.
The synchronization between the wallet and the sidechain is said to be totally encrypted so there would not be any risk unless you compromise your seed.