Malware
Any Malicious Software.
The 3 Main disguises
Viruses- Copies itself; needs contact to spread.
Trojan Horses- Seems legit but allows access to someone else.
Spyware- Secretly obtains personal information.
Avoiding malware.
-Be sure you have an AntiVirus Software.
-Make sure Your computer has a Firewall.
-And have common sense.