The Most Common Computer Security Threats_2025

What is a computer virus?

• A program that only affects email systems

• A piece of software that replicates itself and requires user action to spread

• A type of internet advertisement

• A program that only affects mobile devices

How does a worm differ from a virus in terms of spreading?

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Analyzing

A computer virus differs from a _____________ because a virus requires _____________ to spread, while the other type spreads automatically. [Reference: Page 4 & 8]

A _____________ appears to perform a legitimate action while secretly installing malicious software, similar to its mythological namesake.

Adware is software that automatically displays or downloads _____________ to a computer, which can sometimes degrade system performance. [Reference: Page 6]

My Virus Drawing Shows:

1. Name of my virus: _______________________

2. How my virus works: • Entry point: _________________________ • What it attacks: _____________________ • How it damages: _____________________

3. Warning signs I drew: • Sign 1: ____________________________ • Sign 2: ____________________________ • Sign 3: ____________________________

4. Protection methods I included: • Method 1: _________________________ • Method 2: _________________________ • Method 3: _________________________

5. Why I drew it this way:

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• How could you protect yourself from the threat you chose?

• Would you be able to tell if your computer was affected by this threat?

• How would you explain this threat to a family member?