in my opinion, it was very overbought on the RSI on 12HR and 1D charts. This is just one indicator, but in the past, it has proven to be a good one. And the exchange that was hacked was bancor....which is a trash exchange with less than 1% of the trading volume for the the entire market. So, no it was nothing to do with the exchange hack.
RE: CALM DOWN! Bitcoin should find support at $6,000! This dip is necessary!