They should mention which coins and tokens are lost from the users, I still have my ADA and NEM on the orders before they close the exchange, so I wouldn't assume they are all gone too if they just declare which cryptocurrencies are affected. I'd be looking forward to seeing my funds when they get back online.
I read somewhere that the coins that hackers managed to stole were Ether and ERC20 tokens. So, I think that the tokens that are built on the Ethereum platform had that problem.
I think you are safe with your ADA and NEM coins. They should be untouched into your wallet.