Couple of DNS servers were hijacked to resolve
http://myetherwallet.com users to be redirected to a phishing site. This is not on @myetherwallet side, we are in the process of verifying which servers to get it resolved asap.
I advise you to purchase a hardware wallet Ledger nano s,i have been using it for quite a while and am very pleased. Supports many popular cryptocurrency and without mechanical push the transaction will not take place.