Hello @samuel20 ,
Thank you for submitting homework task 4 ! You have discussed all the three topics with facts !

This is a situation where fraudsters or hackers break into someone's computer and mine crypto currency from the victim's computer.The hackers use the victim's computer's power and resources to perform mining crypto currency or they can steal the persons wallet.

Yes , for this hackers mainly target large servers of companies than individual pc's. And some mobile apps do this too.. It was a nice and informative read [7]
Thank you