I Never thought that I Have to see bitcoin is under 7K USD again in This year. Because we already did this about a couple of months ago! And now Repeat Bitcoin is under 7K USD! And the market trend says that Bitcoin can go under 6K USD too. But what is the actual reason behind this vast fall? I haven't seen any robust lousy news or anything like that, Then why bitcoin is continuously decreasing? My friends are laughing at me, who sold their bitcoin when it was 14K USD! That time I told them you guys are doing wrong, Hold your bitcoin, Bitcoin Price will rise again. And now I am regretting really 
Nobody can say what the exact reason was behind this decline but we can surely predict the possible reasons why this happened.It might be because of the recent south korean exchange hack . Coinrail is the 99th top most crypto exchange which got hacked recently leading to a losses of about $30 million. Media says that this was the reason behind the Bitcoin price fall whereas there are people saying that it was because of the probe launched by the US regulators to identify the price manipulation, which made Bitcoin fall below $7k . We can't really say what caused the fall.