And a bit more on the topic. "BGP Hijacking for Cryptocurrency Profit"

The Dell SecureWorks Counter Threat Unit™ (CTU) research team discovered an unknown entity repeatedly hijacking networks belonging to Amazon, Digital Ocean, OVH, and other large hosting companies between February and May 2014. In total, CTU researchers documented 51 compromised networks from 19 different Internet service providers (ISPs). The hijacker redirected cryptocurrency miners' connections to a hijacker-controlled mining pool and collected the miners' profit, earning an estimated $83,000 in slightly more than four months.

more here...........http://www.secureworks.com/cyber-threat-intelligence/threats/bgp-hijacking-for-cryptocurrency-profit/