From what I've red all over the the internet, there is 5 possible reasons for this BTC massive dump:
- Bitstamp hack => 19000 Bitcoins robbed
- Roskomnadzor which has blocked the access to 7 websites related to Bitcoin. Moreover, the russian government has clearly announced that Bitcoin is only based on speculation and tends to favor the parallel economies.
- The canadian exchange Vault of Satoshis will close on 5th february 2015
- Butterfly Labs and its 94000 Bitcoins
- It is also maybe a leak of a number of speculators, which have lost faith in Bitcoin
In my opinion, this is not only one of these reasons, but all these ones together which are responsible of the actual Bitcoin price.
It's time for Bitcoin 2.0, faster and more secured : Digibyte!