Multi-factor authentication (MFA) in Cybersecurity - Mini Project: Build & Apply

Understanding Multi-factor Authentication (MFA)

📖 Scenario: You are setting up a secure login system for a small company. To protect user accounts better, you want to explain and implement the idea of Multi-factor Authentication (MFA).

🎯 Goal: Build a simple explanation and checklist for MFA factors, then create a small example list of authentication methods and mark which ones count as MFA.

📋 What You'll Learn

Create a dictionary named auth_methods with authentication methods as keys and their factor type as values

Create a list named mfa_factors containing the factor types that count for MFA

Use a dictionary comprehension to create a new dictionary mfa_methods that includes only methods using MFA factors

Add a final statement that explains the importance of MFA in simple terms

💡 Why This Matters

🌍 Real World

MFA is widely used in online banking, email services, and corporate systems to protect user accounts from unauthorized access.

💼 Career

Understanding MFA is essential for cybersecurity professionals, IT administrators, and anyone involved in securing digital systems.

1

Create authentication methods dictionary

Create a dictionary called auth_methods with these exact entries: 'Password': 'Knowledge', 'Fingerprint': 'Biometric', 'Security Token': 'Possession', 'Security Question': 'Knowledge', 'SMS Code': 'Possession'.

Cybersecurity

# Create the auth_methods dictionary with given entries
# Your code here

Need a hint?

Use curly braces to create a dictionary with keys and values separated by colons.

2

Define MFA factor types list

Create a list called mfa_factors that contains these exact strings: 'Possession' and 'Biometric'.

Cybersecurity

auth_methods = {
    'Password': 'Knowledge',
    'Fingerprint': 'Biometric',
    'Security Token': 'Possession',
    'Security Question': 'Knowledge',
    'SMS Code': 'Possession'
}
# Create the mfa_factors list with 'Possession' and 'Biometric'
# Your code here

Need a hint?

Use square brackets to create a list with the exact strings.

3

Filter MFA methods using dictionary comprehension

Use a dictionary comprehension to create a new dictionary called mfa_methods that includes only the items from auth_methods where the factor type is in the mfa_factors list.

Cybersecurity

auth_methods = {
    'Password': 'Knowledge',
    'Fingerprint': 'Biometric',
    'Security Token': 'Possession',
    'Security Question': 'Knowledge',
    'SMS Code': 'Possession'
}
mfa_factors = ['Possession', 'Biometric']
# Create mfa_methods dictionary with methods whose factor is in mfa_factors
# Your code here

Need a hint?

Use {key: value for key, value in dict.items() if condition} syntax.

4

Add explanation about MFA importance

Create a string variable called mfa_explanation with this exact text: 'MFA adds extra security by requiring more than one type of authentication factor.'

Cybersecurity

auth_methods = {
    'Password': 'Knowledge',
    'Fingerprint': 'Biometric',
    'Security Token': 'Possession',
    'Security Question': 'Knowledge',
    'SMS Code': 'Possession'
}
mfa_factors = ['Possession', 'Biometric']
mfa_methods = {method: factor for method, factor in auth_methods.items() if factor in mfa_factors}
# Add the mfa_explanation string with the given text
# Your code here

Need a hint?

Assign the exact sentence as a string to the variable.