Over the last two months, we’ve seen a rapid proliferation of websites that mine cryptocurrencies while users visit. While some of the guilty sites are less reputable, we’ve also seen this behavior from companies like Showtime (which may or may not qualify as “less reputable,” depending on your point of view). The idea of end-users generating income for the sites they visit by mining cryptocurrencies as opposed to being hit with ads has some interesting features to recommend it, though it also raises some concerns and issues about how such funding would be monitored or controlled to ensure systems remained responsive and different sites and browsers didn’t slug it out for resources, with users left in the lurch. Bad actors are on track to kill the concept before it ever gets a real test shake, thanks to increased adoption of malware-like tactics.
Source: Stealth Cryptocurrency Mining Sites Can Now Run Even After You Close Your Browser – ExtremeTech