Watch Out For Malware
It could happen to you.
Any malicious software made to harm your computer such as; Viruses, Trojan Horses, and Spyware. This software may appear to you as an email, other times by sharing files with others.
Copies itself, Needs contact to spread.
Seems legit but allows access to someone else.
Used to secretly obtain personal information from others.
How to protect yourself...
Install Antivirus software on your computer, and set up Firewalls. Also just use common sense and go to reputable websites and be cautious when downloading, copying files, or clicking on links.