Within hours, security researcher Chase Dardaman figured out a way to use Microsoft's new feature to load the CoinHive in-browser miner through a custom JavaScript Excel function.

The JavaScript miner runs inside the app's built-in browser but it gives no indication to the user that the miner is running.

In addition to Coinhive impacting more than one in five organizations, JSEcoin (a JavaScript miner that can be embedded in websites) was in fifth place and Cryptoloot (which targets PCs) was in ninth.

Researchers say cyrptojackers are bypassing ad-blocking software in an attempt to run in-browser cyrptocurrency miner Coinhive.

After the Coinhive cryptomining service which offered web devs a JavaScript-based Monero miner ceased all operations on March 8 and rendered its coinmining script useless, its place was quickly ...