Types of cyber threats in Cybersecurity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the sentence to identify a common cyber threat.

Cybersecurity

A cyber attack that tricks users into revealing personal information is called [1].

Drag options to blanks, or click blank then click option'

Aspyware

Bmalware

Cphishing

Dransomware

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing phishing with malware, which is software that harms computers.

Thinking ransomware is the same as phishing.

Phishing is a cyber threat where attackers pretend to be trustworthy entities to steal sensitive data like passwords or credit card numbers.

2fill in blank

medium

Complete the sentence to name a type of malicious software.

Cybersecurity

Software designed to damage or disrupt computers is called [1].

Drag options to blanks, or click blank then click option'

Aantivirus

Bfirewall

Cencryption

Dmalware

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing antivirus, which protects against malware.

Selecting firewall, which blocks unauthorized access.

Malware is any software created to harm or exploit computers and networks.

3fill in blank

hard

Fix the error by choosing the correct term for software that locks files until a ransom is paid.

Cybersecurity

The cyber threat called [1] encrypts files and demands payment to unlock them.

Drag options to blanks, or click blank then click option'

Aransomware

Bspyware

Cadware

Dphishing

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing ransomware with spyware, which secretly collects data.

Thinking phishing is the same as ransomware.

Ransomware locks or encrypts files and asks victims to pay money to regain access.

4fill in blank

hard

Fill both blanks to complete the description of a cyber threat that secretly collects user data.

Cybersecurity

A type of malware called [1] is used to secretly [2] user information without permission.

Drag options to blanks, or click blank then click option'

Aspyware

Bencrypt

Ccollect

Ddelete

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'encrypt' or 'delete' for the second blank, which are incorrect actions here.

Confusing spyware with adware, which shows unwanted ads.

Spyware is malware that secretly collects data from users without their knowledge.

5fill in blank

hard

Fill both blanks to complete the dictionary comprehension describing a cyber threat that spreads by copying itself.

Cybersecurity

threats = [2]: [1] for [3] in ['worm', 'trojan', 'virus'] if 'w' in [3]

Drag options to blanks, or click blank then click option'

A{

B'self-replicating'

Cthreat

D}

Attempts:

3 left

💡 Hint

Common Mistakes

Using '}' for the first blank instead of '{'.

Using variable names that don't match the loop variable.

This dictionary comprehension creates a dictionary where keys are threat names containing 'w' and values describe them as 'self-replicating'.

Practice

1. Which of the following is a type of cyber threat that tricks users into revealing personal information by pretending to be a trustworthy entity?

easy

A. Phishing

B. Firewall

C. Encryption

D. Backup

Solution

1. Step 1: Understand the definition of phishing

   Phishing is a cyber threat where attackers send fake messages to trick people into giving sensitive data.

2. Step 2: Compare other options

   Firewall protects networks, encryption secures data, and backup saves copies; none trick users.

3. Final Answer:

   Phishing -> Option A

4. Quick Check:

   Tricking users for info = Phishing [OK]

Hint: Phishing always involves fake messages to steal info [OK]

Common Mistakes:

• Confusing phishing with firewall
• Thinking encryption tricks users
• Mixing backup with threats

2. Which of the following correctly describes a Denial of Service (DoS) attack?

easy

A. Installing software to spy on users

B. Stealing passwords from a user

C. Encrypting files for ransom

D. Overloading a system to make it unavailable

Solution

1. Step 1: Define Denial of Service (DoS) attack

   A DoS attack floods a system with traffic to stop it from working properly.

2. Step 2: Eliminate other options

   Stealing passwords is not DoS, encrypting files is ransomware, spying is spyware.

3. Final Answer:

   Overloading a system to make it unavailable -> Option D

4. Quick Check:

   DoS = system overload to block access [OK]

Hint: DoS means making a service stop by flooding it [OK]

Common Mistakes:

• Mixing DoS with password theft
• Confusing ransomware with DoS
• Thinking spyware is DoS

3. What type of cyber threat is demonstrated by this scenario?

"A user receives an email with a link that, when clicked, installs software that records keystrokes."

medium

A. Ransomware

B. Phishing

C. Spyware

D. DoS attack

Solution

1. Step 1: Identify the threat from the scenario

   The software records keystrokes secretly, which is typical of spyware.

2. Step 2: Differentiate from other threats

   Phishing tricks for info, ransomware locks files, DoS overloads systems; none record keystrokes.

3. Final Answer:

   Spyware -> Option C

4. Quick Check:

   Software spying on keys = Spyware [OK]

Hint: Keylogger software = Spyware spying on user actions [OK]

Common Mistakes:

• Confusing phishing with spyware
• Thinking ransomware records keys
• Mixing DoS with spyware

4. A user reports their computer is slow and strange pop-ups appear. Which of these is the most likely cause?

Options:
A) Firewall misconfiguration
B) Spyware infection
C) Strong password use
D) Regular software updates

medium

A. Firewall misconfiguration

B. Spyware infection

C. Strong password use

D. Regular software updates

Solution

1. Step 1: Analyze symptoms of slowness and pop-ups

   Spyware often causes slow performance and unwanted pop-ups by running secretly.

2. Step 2: Rule out other options

   Firewall issues don't cause pop-ups, strong passwords and updates improve security, not cause problems.

3. Final Answer:

   Spyware infection -> Option B

4. Quick Check:

   Slow PC + pop-ups = Spyware [OK]

Hint: Pop-ups and slow PC usually mean spyware [OK]

Common Mistakes:

• Blaming firewall for pop-ups
• Thinking strong passwords cause issues
• Confusing updates with threats

5. A company wants to protect its data from being locked and held for ransom by attackers. Which cyber threat should they focus on preventing?

hard

A. Ransomware

B. Phishing

C. Spyware

D. DoS attack

Solution

1. Step 1: Understand ransomware's effect

   Ransomware encrypts data and demands payment to unlock it, threatening data access.

2. Step 2: Compare with other threats

   Phishing steals info, spyware spies, DoS disrupts service but doesn't lock data.

3. Final Answer:

   Ransomware -> Option A

4. Quick Check:

   Data locked for ransom = Ransomware [OK]

Hint: Ransomware locks files and demands payment [OK]

Common Mistakes:

• Confusing phishing with ransomware
• Thinking spyware locks data
• Mixing DoS with ransomware