The surge of fame, or infamy, that cryptocurrency, specifically Bitcoin, is now enjoying has made some a tad too desperate to cash in on the hype. Desperate but enough to risk investing in such a fickle business. And so they will let others take the risk for them whether those others like it or not. That is practically the line of thinking behind a new class of intrusion called cryptocurrency mining that threatens to render devices, including smartphones, inoperable or even dead. Opera is coming to the rescue with a new version of its mobile browser to protect your phone from such drive-by attacks.