Advanced Topic 42 of 51 Security & Cryptography
Sandboxing
Confining code to limit what it can affect.
How it works
A sandbox restricts a program's access to files, network and system calls using OS features (seccomp, namespaces), VMs or language runtimes, containing compromise.
Where it is used
Browsers, mobile apps, CI runners.
Common pitfall
Escapes via kernel bugs; defense in depth is needed.
Where it fits in the course
Sandboxing is topic 42 of 51 in Security & Cryptography, rated Advanced. It follows ASLR and Stack Canaries. The next topic is Trusted Execution Environments.
Practice and explore
- Open the interactive lesson, with a mini quiz.
- Take the Security & Cryptography quiz.
How to study this topic
- Read the explanation above and restate the definition in your own words.
- Open the interactive lesson and answer its mini quiz.
- Read the common pitfall, then write a short example that avoids it.
- Check your understanding in the Security & Cryptography quiz, and revisit the topic if you miss a question.
Frequently asked questions
What is Sandboxing?
Confining code to limit what it can affect. It belongs to Security & Cryptography and is an advanced-level topic.
Where do people use Sandboxing?
Browsers, mobile apps, CI runners.
What is the most common mistake with Sandboxing?
Escapes via kernel bugs; defense in depth is needed.
What should I learn before this topic?
Start with ASLR and Stack Canaries, the topic just before it in Security & Cryptography.
How can I practice it?
Answer the mini quiz in the interactive lesson, then take the Security & Cryptography quiz.
Is Sandboxing hard to learn?
It is an Advanced topic. Expect to read the explanation more than once and to connect it with earlier topics. Working through a small example by hand helps most.
How long does it take to learn Sandboxing?
Most learners can read the explanation and finish the interactive lesson in under an hour. Fluency comes from applying the idea, so plan a few short practice sessions with the quiz.
Which topics are related to Sandboxing?
ASLR and Stack Canaries, Trusted Execution Environments, Return-Oriented Programming are closely connected. The full list is in the related topics section of this page.
What should I study after Sandboxing?
Continue with Trusted Execution Environments, the next topic in Security & Cryptography.
Related topics
- ASLR and Stack Canaries (Security & Cryptography)
- Trusted Execution Environments (Security & Cryptography)
- Return-Oriented Programming (Security & Cryptography)
- Reverse Engineering (Security & Cryptography)