Please enable JavaScript to use CodeHS

Points

Activity Points
Introduction to Cybersecurity Pretest
1.1 Introduction to Cybersecurity Pretest
1.1.1 About the Pretest 1
1.1.2 Mindsets 1
1.1.3 Introduction to Cybersecurity Knowledge & Skills 1
What is Cybersecurity?
2.1 Module Overview - Cybersecurity
2.1.1 Welcome to Cybersecurity 1
2.1.2 Welcome to Cybersecurity 5
2.1.3 Cybersecurity and You 5
2.1.4 Course Goals 5
2.2 What is Cybersecurity?
2.2.1 What is Cybersecurity? 1
2.2.2 What is Cybersecurity? 5
2.2.3 WannaCry Ransomware Attack 1
2.2.4 WannaCry Reflection 5
2.2.5 Internet of Things 1
2.2.6 Cybersecurity and Connected Cars 1
2.2.7 Internet of Things Reflection 5
2.2.8 Threat Map 1
2.2.9 Why Learn about Cybersecurity? 5
2.3 Impact of Cybersecurity
2.3.1 Impact of Cybersecurity 1
2.3.2 Impact of Cybersecurity 5
2.3.3 Yahoo! Attack 1
2.3.4 Yahoo! Reflection 5
2.3.5 Fighting Cyber Crime 1
2.3.6 Cyber Crime Reflection 5
2.3.7 FBI Cyber Crime 1
2.3.8 FBI Reflection 5
2.4 The CIA Triad
2.4.1 CIA Triad 1
2.4.2 CIA Triad 5
2.4.3 Which part of the CIA Triad? 5
2.4.4 Which part of the CIA Triad? 5
2.4.5 Breach of Confidentiality 5
2.4.6 Breach of Availability 5
2.5 What is Cybersecurity? Quiz
2.5.1 What is Cybersecurity? Quiz 25
2.5.2 Intro to Cybersecurity Badge 1
Digital Citizenship and Cyber Hygiene
3.1 Digital Footprint and Reputation
3.1.1 Digital Footprint and Reputation 1
3.1.2 Digital Footprint and Reputation 5
3.1.3 Building a Positive Digital Footprint 5
3.1.4 Right to be Forgotten? 1
3.1.5 Right to be Forgotten 5
3.1.6 What is your Digital Footprint? 5
3.2 Cyberbullying
3.2.1 Cyberbullying 1
3.2.2 Cyberbullying 5
3.2.3 Scenario: Student Ranking 5
3.2.4 Scenario: Singled Out 5
3.2.5 Stopping Cyberbullying 5
3.3 Internet Safety
3.3.1 Internet Safety 1
3.3.2 Internet Safety 5
3.3.3 Scenario: School Stranger 5
3.3.4 Scenario: Vacation Pals 5
3.3.5 Staying Safe 5
3.4 Privacy & Security
3.4.1 What is Data Privacy & Security? 1
3.4.2 Privacy & Security Quiz 5
3.4.3 How Strong is your Password? 1
3.4.4 How Strong is your password? 5
3.4.5 Google Privacy Policy Search 1
3.4.6 Google Privacy Policy Search 5
3.5 Information Literacy
3.5.1 Information Literacy 1
3.5.2 Information Literacy 5
3.5.3 Effective Internet Searches 5
3.5.4 Evaluate the Source 1 1
3.5.5 Respond: Evaluate the Source 1 5
3.5.6 Evaluate the Source 2 1
3.5.7 Respond: Evaluate the Source 2 5
3.5.8 Hero Pig? 1
3.6 Creative Credit & Copyright
3.6.1 Creative Credit and Copyright 1
3.6.2 Creative Credit and Copyright 5
3.6.3 Cite! 5
3.6.4 Exploring Creative Commons 1
3.6.5 Respond: Creative Commons 5
3.6.6 Task: Finding Images 5
3.6.7 Reflection: Why is Copyright Important? 5
3.7 Hacking Ethics
3.7.1 Hacking Ethics & Legality 1
3.7.2 Hacking Ethics & Legality 5
3.7.3 Penetration Testing 1
3.7.4 Reflection: Penetration Testing 5
3.7.5 Hack the Pentagon? 1
3.7.6 Reflection: Hack the Pentagon 5
3.7.7 Ethical Hacker Agreement 1
3.8 Project: Public Service Announcement
3.8.1 Pick a Topic 5
3.8.2 Research 5
3.8.3 Choose Your Audience 5
3.8.4 What kind of PSA? 5
3.8.5 Draft your PSA 5
3.8.6 Finalize your PSA! 15
3.9 Digital Citizenship and Cyber Hygiene Quiz
3.9.1 Digital Citizenship and Cyber Hygiene Quiz 25
3.9.2 Digital Citizenship and Cybersecurity Badge 1
The ABCs of Cryptography
4.1 Cryptography, Cryptology, Cryptanalysis
4.1.1 Cryptography, Cryptology, Cryptanalysis 1
4.1.2 Cryptography, Cryptology, Cryptanalysis 5
4.1.3 Securing the Cloud 1
4.1.4 Encryption Reflection 5
4.2 History of Cryptography
4.2.1 Cryptography: A Brief History 1
4.2.2 Cryptography History Quiz 5
4.2.3 How the Enigma Worked 1
4.2.4 How the Enigma Worked 5
4.2.5 Unknown Languages and the Future of Cryptography 1
4.2.6 The Future of Cybersecurity 5
4.3 Why encrypt?
4.3.1 Why encrypt? 1
4.3.2 Why encrypt? 5
4.4 Basic Crypto Systems: Caesar Cipher
4.4.1 Caesar Cipher 1
4.4.2 Caesar Cipher 5
4.4.3 Caesar Cipher 1
4.4.4 Decrypting Caesar 5
4.5 Basic Crypto Systems: Cracking Caesar
4.5.1 Cracking Caesar Cipher 1
4.5.2 Cracking Caesar Cipher 5
4.5.3 Cracking Caesar with Brute Force 1
4.5.4 Letter Frequency and Caesar 1
4.5.5 Examining Caesar Cipher 5
4.6 Basic Crypto Systems: Vigenere Cipher
4.6.1 Vigenere Cipher 1
4.6.2 Vigenere Cipher 5
4.6.3 Vigenere Cipher Example 1
4.6.4 Letter Frequency and Vigenere Cipher 1
4.6.5 Examining Vigenere Cipher 5
4.7 Advanced Cryptography
4.7.1 Advanced Cryptography 1
4.7.2 Advanced Cryptography 5
4.7.3 Public Key Cryptography for Non-Geeks 1
4.7.4 Examining Public Key Cryptography 5
4.7.5 Public Key Cryptography 1
4.7.6 Public Key Cryptography 5
4.8 Hash Functions
4.8.1 Hash Functions 1
4.8.2 Hash Functions 5
4.8.3 Google Shattered Crypto Algorithm 1
4.8.4 Hash Functions in the News 5
4.8.5 Using a Hash Generator 1
4.8.6 Hash Generator 5
4.9 Hash Function Development
4.9.1 Hash Function Development 1
4.9.2 Hash Function Development 5
4.9.3 Develop a Simple Hash Function 5
4.10 Project: Classic Cipher Newscast
4.10.1 Overview 1
4.10.2 Preview Sample Newscasts 5
4.10.3 Investigate a Classic Cipher 1
4.10.4 Write the Script and Rehearse 5
4.10.5 Newscast Presentation 15
4.11 The ABCs of Cryptography Quiz
4.11.1 The ABCs of Cryptography Quiz 25
4.11.2 ABCs of Cryptography Badge 1
Final Project: PSA
5.1 Project: PSA
5.1.1 Pick a Topic 5
5.1.2 Research 5
5.1.3 Choose Your Audience 5
5.1.4 What kind of PSA? 5
5.1.5 Draft your PSA 5
5.1.6 Make your PSA! 5
Software Security
6.1 Inside Web Apps
6.1.1 Getting Started 1
6.1.2 Inside Web Apps 1
6.1.3 Inside Web Apps 5
6.1.4 Using View Page Source 5
6.1.5 Getting Started with OWASP 1
6.1.6 Getting Started with OWASP 5
6.2 Developer Tools
6.2.1 Developer Tools 1
6.2.2 Developer Tools 5
6.2.3 Using the Developer Tools 5
6.2.4 The Top Cybersecurity Blogs and Websites 1
6.2.5 Selecting a Site to Follow 5
6.3 Databases
6.3.1 Databases 1
6.3.2 Databases 1
6.3.3 Database Administrator Career 1
6.3.4 Database Administrator Career 5
6.3.5 Parts of a Database 1
6.3.6 Parts of a Database 1
6.3.7 SQL Database Diagram 1
6.3.8 SQL Database Diagram 5
6.4 Clients and Servers
6.4.1 Clients and Servers 1
6.4.2 Clients and Servers 2
6.4.3 Inside a Google Data Center 1
6.4.4 Inside a Google Data Center 5
6.4.5 Cloud Vulnerabilities 1
6.4.6 Cloud Vulnerabilities Response 5
6.4.7 Client-Server Model 1
6.4.8 Client-Server Model 2
6.4.9 The Future of User Privacy 1
6.4.10 The Future of User Privacy 5
6.5 What is SQL?
6.5.1 What is SQL Overview 1
6.5.2 Intro to SQL 1
6.5.3 Quiz: What is SQL? 1
6.6 Structuring Data in SQL
6.6.1 How to Structure Data in SQL 1
6.6.2 How to Structure Data in SQL 3
6.7 Basic Querying in SQL
6.7.1 The SELECT Statement 1
6.7.2 Basic Querying in SQL 1
6.7.3 Our First SELECT Statement 1
6.7.4 Your First SELECT Statement 5
6.7.5 More SELECT Statement 1
6.7.6 More SELECT Statement 1
6.7.7 Selecting Specific Columns 1
6.7.8 Harry Potter Names 5
6.8 Filtering Queries in SQL
6.8.1 The WHERE Clause 1
6.8.2 Condition Operators 5
6.8.3 Ravenclaw House 1
6.8.4 People in Gryffindor 1
6.8.5 Filter By ID 1
6.8.6 The Weasleys 5
6.8.7 The Potters 5
6.9 Common Security Problems
6.9.1 Common Security Problems 1
6.9.2 Common Security Problems 5
6.9.3 Meet Security Engineers at Google 1
6.9.4 Security Engineering Reflection 5
6.9.5 Living in a Digital World 1
6.9.6 Living in a Digital World 5
6.10 SQL Injection Overview
6.10.1 SQL Injection Overview 1
6.10.2 SQL Injection Overview 5
6.10.3 Equifax Security Breach 1
6.10.4 Equifax Exposed Millions 1
6.10.5 Equifax SQL Injection Attack 5
6.11 Types of SQLi and Prevention
6.11.1 Types of SQLi 1
6.11.2 Types of SQLi 3
6.11.3 Preventing SQLi 1
6.11.4 Preventing SQLi 2
6.11.5 Mitigating SQL Injection 1
6.11.6 Reflection: Mitigating SQL Injection 5
6.12 Cross-site Scripting
6.12.1 Cross-site Scripting 1
6.12.2 Cross-site Scripting 5
6.12.3 XSS Bug in Yahoo Mail 1
6.12.4 XSS Bug in Yahoo Mail 5
6.12.5 XSS Demo Overview 1
6.12.6 Google Application Security: XSS 1
6.12.7 Google's Tutorial for XSS 1
6.12.8 XSS Reflection 5
6.13 Software Security Quiz
6.13.1 Software Security Quiz 25
6.13.2 Software Security Badge 1
Networking Fundamentals
7.1 Introduction to the Internet
7.1.1 Getting Started 1
7.1.2 Welcome to the Internet 1
7.1.3 Intro to the Internet 5
7.1.4 Inside Facebook's Connectivity Lab 1
7.1.5 Connectivity Lab Reflection 5
7.2 Internet Hardware and Sending Information
7.2.1 Internet Hardware 1
7.2.2 Internet Hardware 2
7.2.3 Sending Information 1
7.2.4 Sending Information 3
7.2.5 The Internet is in the Ocean 1
7.2.6 Internet in the Ocean Reflection 5
7.3 Internet Addresses
7.3.1 Internet Addresses 1
7.3.2 Internet Addresses 5
7.3.3 The Need for Addresses 5
7.3.4 IPv4 vs. IPv6 1
7.3.5 The Long Transition to IPv6 1
7.3.6 Reflection: IPv4 vs IPv6 5
7.4 Domain Name System (DNS)
7.4.1 Domain Name System (DNS) 1
7.4.2 Domain Name System 5
7.4.3 How Does DNS Work? 1
7.4.4 How Does DNS Work? 5
7.5 Routing
7.5.1 Routing 1
7.5.2 Routing 5
7.5.3 Route Tracing 1
7.5.4 Redundancy 5
7.6 Packets & Protocols
7.6.1 Packets 1
7.6.2 Packets 2
7.6.3 Protocols 1
7.6.4 Protocols 3
7.6.5 Passing Notes 1
7.6.6 How the Internet Works 1
7.6.7 How the Internet Works Reflection 5
7.7 Viewing a Webpage
7.7.1 Viewing a Webpage 1
7.7.2 Viewing a Webpage 5
7.7.3 Explaining a URL 5
7.7.4 Net Neutrality Explained 1
7.7.5 FCCs Net Neutrality Rules Officially Repealed 1
7.7.6 Take a Side on Net Neutrality 5
7.7.7 Net Neutrality and Cybersecurity 1
7.7.8 Net Neutrality and Cybersecurity Research 5
7.8 Impact of the Internet
7.8.1 Impact of the Internet 1
7.8.2 Impact of the Internet 5
7.8.3 The Internet and You 5
7.8.4 Crucial Steps Needed to Close the U.S. Digital Div 1
7.8.5 Closing the Digital Divide 5
7.9 Network Attacks
7.9.1 Network Attacks Overview 1
7.9.2 Network Attacks 5
7.9.3 Common Network Attacks 1
7.9.4 Network Attacks 5
7.9.5 Social Engineering Hack 1
7.9.6 Social Engineering Reflection 5
7.9.7 DDoS Attacks 1
7.9.8 DDoS Reflection 5
7.9.9 SUPPLEMENTARY: Other Network Attacks 1
7.10 Securing a Network
7.10.1 Access Control 1
7.10.2 Access Control 5
7.10.3 RADIUS Overview with AAA Protocol 1
7.10.4 RADIUS Server Access Control 1
7.10.5 RADIUS Reflection 5
7.10.6 Detecting Intrusions to Secure a Network 1
7.10.7 Securing a Network 5
7.10.8 How to Secure your IT Network 1
7.10.9 Secure your IT Network Basics 5
7.10.10 Network Administrator Career 1
7.10.11 Network Administrator Career 5
7.11 Project: Secure the Company's Network
7.11.1 Secure the Company's Network 1
7.11.2 Establish Firewall Rules 5
7.11.3 Establish Firewall Rules Handout 1
7.11.4 Reading Logs 5
7.11.5 Reading Logs Handout 1
7.11.6 SSH Logs 1
7.11.7 Project Reflection 5
7.12 Networking Fundamentals Quiz
7.12.1 Networking Fundamentals Quiz 25
7.12.2 Networking Fundamentals Badge 1
Final Course Project
8.1 Final Course Project
8.1.1 Choose Your Own Adventure 1
8.1.2 Choose Your Adventure 5
8.1.3 Research 5
8.1.4 Choose Your Target Audience 5
8.1.5 Draft Your Presentation 5
8.1.6 Draft Your Flyer 5
8.1.7 Make Your Presentation with Handout! 5
Cryptocurrency
9.1 What is Currency?
9.1.1 What is Currency? 1
9.1.2 What is Currency? 5
9.1.3 What Gives Paper Money Its Actual Value 1
9.1.4 What Gives Money Its Value 5
9.1.5 Money: What is it Good For? 1
9.2 What is Cryptocurrency?
9.2.1 Cryptocurrency Basics 1
9.2.2 Cryptocurrency Basics 5
9.2.3 Cryptocurrency Module Overview 1
9.2.4 Cryptocurrencies Might Help Developing Countries 1
9.2.5 Cryptocurrencies are Helping Developing Countries 5
9.2.6 Show Me the Money 1
9.2.7 American Currency Exhibit 5
9.3 Intro to Blockchain
9.3.1 Intro to Blockchain 1
9.3.2 Intro to Blockchain 5
9.3.3 CryptoKitties 1
9.3.4 CryptoKitties 5
9.4 Hashing
9.4.1 Hashing 1
9.4.2 Hashing 5
9.4.3 SHA256 Hash Generator 1
9.4.4 Using the SHA256 Hash Generator 5
9.5 Proof of Work
9.5.1 Proof of Work 1
9.5.2 Proof of Work 5
9.5.3 Mining the Block 1
9.5.4 Mining the Block 5
9.5.5 PoW vs. Proof of Stake 1
9.5.6 PoW vs. PoS 5
9.5.7 Checking Proof of Work 1
9.6 Advanced Blockchain
9.6.1 Advanced Blockchain (part 1) 1
9.6.2 Advanced Blockchain (part 1) 5
9.6.3 Blockchain Buzz 1
9.6.4 Blockchain Buzz 5
9.6.5 Advanced Blockchain (part 2) 1
9.6.6 Advanced Blockchain (part 2) 5
9.6.7 Make a Blockchain 1
9.6.8 SUPPLEMENTARY: How to TimeStamp a Document 1
9.7 Cryptocurrencies
9.7.1 Cryptocurrencies 1
9.7.2 Cryptocurrencies 5
9.7.3 Shiny Toy Phenomenon 5
9.7.4 Walmart Using Blockchain to Stop Spread of Disease 1
9.7.5 Walmart Use of Blockchain 5
9.8 Bitcoin
9.8.1 Bitcoin 1
9.8.2 Bitcoin 5
9.8.3 51% Attack Explained 1
9.8.4 51% Attack 5
9.8.5 Why the Bitcoin Bubble will Burst in 2018 1
9.8.6 Bitcoin Bust 5
9.8.7 Explore the Bitcoin Blockchain 1
9.9 Pros, Cons, and Future of Cryptocurrencies
9.9.1 Pros, Cons, and Future of Cryptocurrencies 1
9.9.2 Pros, Cons and Future of Cryptocurrencies 5
9.9.3 Pros, Cons and future of Cryptocurrencies 5
9.9.4 Cryptocurrency Pros and Cons 1
9.9.5 Crypto Pros and Cons 5
9.9.6 What is HODL? 1
9.9.7 What is HODL? 5
9.9.8 Pros, Cons, and Future of Cryptocurrencies 5
9.10 Project: Cryptocurrency Expert Panel Talk
9.10.1 Overview 5
9.10.2 Preview Sample Expert Panels 5
9.10.3 Investigate a Cryptocurrency Topic 5
9.10.4 Write an Outline and Rehearse 5
9.10.5 Expert Panel Talk (Presentation) 5
9.11 Cryptocurrency Quiz
9.11.1 Cryptocurrency Quiz 25
9.11.2 Cryptocurrency Badge 0
Project: Security Assessment Report
10.1 Project: Security Assessment Report
10.1.1 Security Assessment Report 5
10.1.2 Supercar Showdown Website 1
10.1.3 SQL Injection Testing 5
10.1.4 SQLi Testing Handout 1
10.1.5 Cross-site Scripting Testing 5
10.1.6 Cross-site Scripting Handout 1
10.1.7 Project Reflection 5