📚 Topic Summary
In today's digital world, strong passwords are your first line of defense against cyber threats. A well-crafted password protects your personal information, accounts, and sensitive data from unauthorized access. For AP Computer Science students, understanding password security is not only crucial for personal safety but also a fundamental concept in cybersecurity. This worksheet will guide you through the best practices for creating and managing strong passwords.
Creating a strong password involves using a combination of uppercase and lowercase letters, numbers, and special characters. The longer the password, the more secure it is. Avoid using easily guessable information such as birthdays, names, or common words. Regularly updating your passwords and using different passwords for different accounts are also essential steps to maintain online security.
🧠 Part A: Vocabulary
Match the term with its definition:
| Term |
Definition |
| 1. Password Entropy |
A. A program that attempts to crack passwords by trying common words and phrases. |
| 2. Brute-Force Attack |
B. The measure of unpredictability of a password; higher entropy means a stronger password. |
| 3. Rainbow Table |
C. A security measure requiring more than one method of authentication to verify a user's identity. |
| 4. Dictionary Attack |
D. An attempt to guess a password by systematically trying all possible combinations of characters. |
| 5. Multi-Factor Authentication (MFA) |
E. A precomputed table for reversing cryptographic hash functions, often used to crack passwords. |
Answers: 1-B, 2-D, 3-E, 4-A, 5-C
🔐 Part B: Fill in the Blanks
Complete the paragraph using the words provided: complexity, characters, unique, manager, regularly.
To create a strong password, ensure it has sufficient ________ and includes a mix of uppercase letters, lowercase letters, numbers, and special ________. It's crucial to use a ________ password for each of your accounts. Consider using a password ________ to help you generate and store strong passwords. You should also update your passwords ________ to minimize the risk of compromise.
Answers: complexity, characters, unique, manager, regularly
🤔 Part C: Critical Thinking
Explain why using the same password for multiple accounts is a security risk. What steps can you take to mitigate this risk?