The digital currency markets repeatedly remind us of a tired but true maxim: your money is only as secure as the bank that guards it.
After a recent hack resulted in the theft of $70 million worth of bitcoin, Hong Kong-based Bitfinex caused a minor panic when it announced it would spread the losses equally among all its customers, even those whose holdings weren’t touched. In doing so, the exchange called our attention — yet again — to how vulnerable virtual currencies are to criminals who hack through the Internet-connected systems that handle money transactions.
Proponents of the technology behind bitcoin say the problem isn’t with the blockchain technology that underpins the currency but rather with the way exchanges store the code that determines ownership. In other words, the banks’ security is to blame.
http://www.salon.com/2016/08/13/why-the-latest-bitcoin-hack-should-make-you-worried-about-your-money/