I have not had a problem with MEW. But I've heard complaints from most people. All tokens in your wallets are stolen. This is a huge problem ,I'm still using it,I did not investigate another option.but now I'm starting to think. I hope no one is affected any more.Keeping your private key private is so important to be careful
Until your private key are in safe place your mew account will never be hack and your altcoin inside them are safe & cannot stolen by anyone, mew is one of the popular eth based wallet and untill now Im using this wallet to hold my altcoin, if you are using this wallet you need to understand how this wallet work.
For me MEW is the best wallet to keep your token. You need to make sure that you have multiple backups, stored in separate locations, of your private key + password. This will prevent loss in case your computer crashes or your house burns down or anything else.
You also need to ensure you keep these keys securely. This means:
1. Don't enter it on random websites.
2. Always ensure you are on the correct site or downloading from the legitimate repo / website.
3. Don't email your key, send it to anyone or post it online.
4. Don't save it to cloud storage.
5. Don't have Team Viewer or other remote access software on your computer.