Man-in-the-middle attacks in Computer Networks - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a Man-in-the-middle (MITM) attack?

A Man-in-the-middle attack is when a hacker secretly intercepts and possibly alters communication between two parties who believe they are directly communicating with each other.

beginner

How does a MITM attacker intercept communication?

The attacker places themselves between the sender and receiver, capturing messages sent between them without their knowledge.

intermediate

Name one common method attackers use to perform MITM attacks.

One common method is Wi-Fi eavesdropping, where attackers set up fake Wi-Fi hotspots to capture data from users who connect to them.

beginner

What is one way to protect against MITM attacks?

Using encrypted connections like HTTPS or VPNs helps protect data by making it unreadable to attackers even if intercepted.

intermediate

Why is verifying digital certificates important in preventing MITM attacks?

Digital certificates confirm the identity of websites or services, helping users avoid fake sites set up by attackers to steal information.

What does a Man-in-the-middle attacker do?

A Deletes files on a computer

B Blocks all internet traffic

C Creates a new user account

D Intercepts communication between two parties

A MITM attacker secretly intercepts communication between two parties.

Which of these is a common way to perform a MITM attack?

A Setting up a fake Wi-Fi hotspot

B Sending spam emails

C Installing antivirus software

D Using a strong password

Fake Wi-Fi hotspots can capture data from users, enabling MITM attacks.

How can HTTPS help protect against MITM attacks?

A By blocking pop-up ads

B By speeding up internet connection

C By encrypting data between user and website

D By deleting cookies

HTTPS encrypts data, making it hard for attackers to read intercepted information.

What should you check to avoid fake websites in MITM attacks?

A Website colors

B Digital certificates

C Number of images

D Font style

Digital certificates verify the website's identity and help avoid fake sites.

Which action does NOT help prevent MITM attacks?

A Using public Wi-Fi without protection

B Using a VPN

C Checking for HTTPS in URLs

D Avoiding suspicious links

Using public Wi-Fi without protection increases risk of MITM attacks.

Explain what a Man-in-the-middle attack is and how it works.

Think about someone secretly listening or changing messages between two friends.

Describe at least two ways to protect yourself from Man-in-the-middle attacks.

Consider how to keep your messages private and check who you are talking to online.