Cyber Security Interview Questions and Answers › Cyber Security
Virus vs worm vs trojan: what is the difference?
Malware is software made to harm, spy or lock systems. A virus needs a file. A worm spreads alone. A trojan pretends to be useful. Each type needs a different defence.

Read card text
What this card says
Malware is software made to harm, spy or lock systems. A virus needs a file. A worm spreads alone. A trojan pretends to be useful. Each type needs a different defence.
Learn more in the lesson: 39.1 What Is Malware – Types for Defenders