BITTREX is an exchange and BTC is currency. There is no comparison. The issues is that the trading platform is compromised or their code is and we are the victims.
I'm highly surprised with so many negative reviews, BITTREX has not been impacted in any way and they continue to scam their clients without any explanations.
I'm convinced that they know the issue very well and intentionally not doing anything as they are not regulated by the SEC.