... So what are the most common types of malware? They fall into two main categories: those that are basically no more than a nuisance, and those that are aimed at getting money from the victim. Perhaps the most common example of nuisance malware is adware. According to Oh, this is typically delivered along with free software or by compromised or malicious web sites. Adware rarely does any real damage, but some examples are hard to remove. The term was once applied to 'advertising supported software.' In return for getting a useful application at no charge, you accept that it...