According to Yibencaijing (a FinTech media in China), a hacker interviewed recently said that there will be 99% of hackers turning their eye on cryptocurrency. They are in a completed industrial chain cooperating to collect information, hack where they aimed and finish ‘coin’ laundering. The core reason for them boldly doing this is that cryptocurrency is still in the gray zone, and many countries have not legitimized it. Newly-founded exchanges are their best target.
http://news.8btc.com/99-hackers-eye-on-cryptocurrency-we-never-buy-it-we-steal-it