Over the past few weeks, it seems many exchanges have come under attack. There seems to be some coordinated attack on bitcoin exchanges going on, knocking many offline. This list has been going since November and includes the normal ones and a few other exchanges too.
https://forum.bitcoin.com/exchanges/bitcoin-exchanges-are-under-attack-t2724.html
https://forum.bitcoin.com/exchanges/bitcoin-exchanges-are-under-attack-t2724.html
Sad fact is, some of these attacks are happening in developing countries where Bitcoin has the most potential. It is also happening in a time when Bitcoin's price is rising. This will throwback its rising trend.
