A Canadian digital currency exchange is out as much as $14m worth of the cryptocurrency ether. According to social media posts and a subsequent statement from Vancouver-based QuadrigaCX, the issue had to do with a previously used "splitter contract" which was utilized to separate incoming ethers and classic ethers (another cryptocurrency that arose from a blockchain split last year). Yet a recent ethereum client software update, according to QuadrigaCX, led to an issue with how the smart contract functioned. The exchange said:
"Due to an issue when we upgraded from Geth 1.5.3 to 1.5.9, this contract failed to execute the hot wallet transfer for a few days in May. As a result, a significant sum of ether has effectively been trapped in the splitter contract. The issue that caused this situation has since been resolved."