This is a screenshot of some leaked source code for a Bitcoin exchange. This source code is intended to access a MySQL database. Here is the full code listing: http://pastebin.com/W8B3CGiN. The bitcoin digital currency was devised to allow payment over the Internet using a digital currency. This breach shows that security is not absolute. But this is rather like the Snapchat breach that exposed usernames and E-Mail addresses. The Internet is not absolutely secure and things like this will happen. It is just a matter of time. At least this is not a massive database of passwords leaked from some website. This is just a section of code. Although it gets worse… From the IRC chat of Nanashi and other hackers, it seems that the hacker also have access to a 20GB data dump of customer data along with passport scans. This means that confidential customer data has been compromised. This is why you do not sign up with crappy bitcoin sites like this. The code is quite messy, but if something works and is relatively reliable, then it will still be accepted. Consider healthcare.gov for example. It has horrific coding, but it does work for most people… Not that you should get into poor programming practices. But if you put up a website, make sure it is secure!