The websites of US telly giant CBS's Showtime contained JavaScript that secretly commandeered viewers' web browsers over the weekend to mine cryptocurrency.
The flagship Showtime.com and its instant-access ShowtimeAnytime.com sibling silently pulled in code that caused browsers to blow spare processor time calculating new Monero coins – a privacy-focused alternative to the ever-popular Bitcoin. The hidden software typically consumed as much as 60 per cent of CPU capacity on computers visiting the sites.
Read the full article here:
https://www.theregister.co.uk/2017/09/25/showtime_hit_with_coinmining_script/
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Naughty naughty