Beware of what software or App you download

[spike]

It could use and abuse your pc
Sneaky software turns your PC into a Bitcoin-mining zombie

...Malwarebytes says that the "Your Free Proxy" software by We Build Toolbars, LLC, includes the innocently named "Monitor.exe," which not-so-innocently "beacons out constantly, waiting for commands from a remote server, eventually downloading the [jhProtominer mining software] and installing it on the system."

Bitcoin mining is an intensive process that strains your CPU and GPU alike, to the point of drastically slowing down your system (depending on your setup)....