"Browser-based drive-by cryptomining keeps running even when closed... Drive-by mining has one flaw. Or at least had one. Since it’s browser-based, it stops mining when you close the browser. Now some unscrupulous individuals have found a way around that by practically opening a tiny browser window that hides itself under the Windows taskbar..." https://www.slashgear.com/browser-b...ning-keeps-running-even-when-closed-30509961/ "Websites use your CPU to mine cryptocurrency even when you close your browser Resource-draining code hides in pop-under windows that can remain open indefinitely..." https://arstechnica.com/information...-by-cryptomining-comes-to-a-browser-near-you/
Also more info on taskbar crypto miner here: https://www.bleepingcomputer.com/ne...s-to-operate-after-users-close-their-browser/