MyEtherWallet Hack Explained!
#1
Yesterday MyEtherWallet.com's DNS was hi-jacked by hackers, which redirected the website to a phishing site causing people to loose their Ether & ERC20 tokens. Many people think it was due to a security flaw on MEW's website, but it's actually an issue with DNS in general...

So long story short, this can happen to any website no matter the security precautions.