A hacker called domain registry and impersonated the owner of Classic Ether Wallet to hijack the site. Please use https://t.co/QkbiZ3nILC
old wallets are safe. The hijacked site uses code to copy private key which is typed in by user and sends it to the hacker.
And don't use https://classicetherwallet.com/ for today, i will make update if all of bugs be fixed by developers
 so becareful with this risk losing ethereum classic.