Have you noticed your Chrome sessions are using a lot more CPU power now than they used to and you have installed the Short URL (goo.gl) extension recently?  Congratulations, you are a cryptocurrency miner!  It seems some ne'r-do-well managed to infect the server which provides that app with a mining program called Cryptonight which enlists your browser into mining XMR coins.  For now your best bet is to uninstall that application if you have it installed; it has been removed from Google Play if you do not.  The Register has a bit more information on Cryptonight as well as some history on similar browser miners here.

"Another Chrome extension has been found secretly harboring a cryptocurrency miner – and it appears this issue is going to get worse before it gets better."

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