I use Meta Mask wallet. But I wonder, is it possibble to be attacted by hackers any way? My MEW wallet was stolen, that's why this question is problem for me.
according to me your Mew wallet is hacked because you are wrong in saving private key. or you've visited a phishing site
as a suggestion, you immediately create a new account, if there is any remaining tokens immediately move to the new Mew wallet. this has become the risk of this work.