Sometimes we notice that our devices suddenly start making more noise and the productivity falls. This may happen when the CPU usage is too high, so don’t rush to ask a specialist for help, as the chances are that you became a victim of a cryptocurrency-mining virus. The first attempts to use computers as cryptocurrency miners without the owners’ permission date back to 2011.
https://block-chain.com/news/hidden-cryptocurrency-mining-essence-harm-and-ways-of-protecting
