Myetherwallet hacked, it is not true. It is the Google DNS got hacked. Border Gateway protocol got hijacking on Amazon web services. Myetherwallet uses Amazon's Route 53 DNS service. The Google DNS attack was between April 24 11am to 1 pm UTC time. The DNS attack is from an Russian IP address. So far 215 eth was stolen. If you use keystore/JSON file, Mneumonic phrase and private key to access myetherwallet during the DNS attack, your myetherwallet mostly likely compromise. If you use MetaMask, Ledger Nano S wallet, Trezor, there is a chance your funds redirect to another address that were send during the attack but so far there was no report on this. If you have not access to myetherwallet.com, you should be fine. Do not access myetherwallet until it is safe. You can check your crypto balance in etherscan, you do not need to load your private key to check the balance.
To protect from myetherwallet hacked, always use MetaMask, Ledge Nano S or Trezor to send ethereum or ERC 20 tokens. Another alternative is to use mycrypto.com. Use multiple mew address to spread your risk. This is not the only DNS attack, Etherdelta also has a DNS attack in December 2017. Do not load your Ledger Nano S in etherdelta. Create another mew account just for trading purpose in etherdelta. Transfer the token out after trading.