Recent visitors to Showtime’s website got more than competently produced, premium cable series streamed on-demand. They also got a spike in CPU usage, as Showtime used their systems to mine cryptocurrency. So, was this malware? Perhaps a bad ad infiltrated Showtime’s site? Nope, Showtime apparently intended to do this by integrating the Coinhive mining API.
Users who land on a Coinhive page can expect to see a substantial portion of their CPU power consumed by the browser. Using a test page, I watched as Coinhive used about 60 percent of my CPU load to mine cryptocurrency. Your computer will use more power while this happens, and a laptop’s battery life will be severely impacted.