There are many cryptocurrency exchange hack in the past and some are even small exchanges but it has affected the price greatly. Bithumb being a large volume exchange, it is expected too that it will affect the bitcoin price big time but the market is not moving that much since it is still sideways so maybe it is a good sign. We maybe at the bottom already and bears are already exhausted so it is a good time to buy more but do not be too confident and still have a stop loss to manage your risk.
Another expectations to fall for those people who think that way but if you really look for the past situation when bithumb get hack you will see that the market is not much affected and the price of BTC together with alts goes stable and although we are on the dump or bad market situation I still believe that the August onwards we will see some big news of current bull pump coming.