https://www.bleepingcomputer.com/news/security/opera-blocks-in-browser-cryptocurrency-mining-in-new-mobile-browser-versions/
origin - https://www.pipiscrew.com/2018/01/opera-blocks-in-browser-cryptocurrency-mining-in-new-mobile-browser-versions/ opera-blocks-in-browser-cryptocurrency-mining-in-new-mobile-browser-versions