According to some sources, Binance was hacked just to hide the sale bitcoin of the Japanese (mt.gox) ( ~800k BTC ). If there are more information about the hacking exchange.Then, BTC breaking below 4xxx, maybe 2k5, I think the best way : u should to sell all your BTC, altcoin. All exchange will die. Thats' the second mt.gox. ***Attention from now until 7/4/2018.
The Chinese exchange is not easy to hack. If so, it is deliberate......
You can see that after touching the $ 6000 level, the bitcoin price immediately rebounded and rose very quickly, at present the bitcoin price is at $ 9200 and still on the rise. I think you can buy and trade bitcoin at this point, but if you look at long-term price, bitcoin is still in the down cycle so you should not invest in long-term bitcoin.