Copyright Law & Access Restriction
Digital content — software, music, images, text — is protected by copyright law. Understanding intellectual property rights and methods of restricting access is essential for ethical and legal use of technology.
Learning Objectives
- 11.1.3.1 Explain copyright law in computing
- 11.1.3.4 Describe methods of access restriction
Conceptual Anchor
The Song Analogy
If you write a song, you own it — even if others can hear it. Copyright gives you the exclusive right to decide who can copy, share, or perform it. The same applies to code, images, and documents. Just because it's online doesn't mean it's free to use.
Rules & Theory
Copyright in Computing
| Concept | Explanation |
|---|---|
| Copyright | Legal right that protects the creator's work from being copied, distributed, or modified without permission |
| Intellectual property (IP) | Creations of the mind: inventions, literary works, designs, software |
| Software piracy | Illegal copying, distribution, or use of copyrighted software |
| Plagiarism | Presenting someone else's work as your own |
| Fair use | Limited use of copyrighted material for education, criticism, or research |
Types of Software Piracy
| Type | Description |
|---|---|
| Softlifting | Buying one license and installing on multiple computers |
| Counterfeiting | Making fake copies of software for sale |
| Hard disk loading | Selling computers with pre-installed pirated software |
| Online piracy | Downloading or sharing cracked software from the internet |
Access Restriction Methods
| Method | How It Works | Example |
|---|---|---|
| Passwords | User must enter correct credentials | Login screens |
| Access Control Lists (ACL) | Define permissions per user/group for each resource | File sharing settings |
| Firewalls | Block unauthorized network access | Corporate network protection |
| Biometrics | Physical characteristics for authentication | Fingerprint scanner |
| DRM (Digital Rights Management) | Technology that restricts copying/sharing of digital media | Spotify, Netflix, Kindle |
| License keys | Unique code required to activate software | Product key for Windows |
| Physical locks | Restrict physical access to hardware | Server room locks, cable locks |
Creative Commons (CC)
Creative Commons licenses allow creators to choose how others can use their work. CC BY = use freely with credit · CC BY-SA = share-alike · CC BY-NC = non-commercial only · CC0 = public domain (no restrictions).
Worked Examples
1 Is This Legal?
| Scenario | Legal? | Why |
|---|---|---|
| Downloading music from a pirate site | ❌ No | Copyright infringement |
| Using a CC BY image with credit | ✅ Yes | License permits it |
| Copying Photoshop from a friend | ❌ No | Software piracy (softlifting) |
| Quoting 2 lines of code in a report | ✅ Yes | Fair use for education |
| Using a GPL library in your project | ✅ Yes | Must open-source your project too |
Common Pitfalls
"It's on the Internet, So It's Free"
Just because content is accessible online does NOT mean it's free to use. Images, code, music, and text are all protected by copyright by default. Always check the license.
Confusing Free Software with Freeware
Free software (libre) = freedom to use/modify/share the source code. Freeware = free of charge but no access to source code. They are different concepts.
Tasks
Define copyright, intellectual property, and software piracy.
Explain why DRM is controversial. What are the arguments for and against it?
You are creating a school website. List 3 types of content you might find online and explain how to use each legally.
Compare Access Control Lists (ACL) with role-based access. Which would be better for a hospital? Why?
Self-Check Quiz
Q1: What is software piracy?
Q2: What does DRM stand for?
Q3: What Creative Commons license allows any use as long as you give credit?