Course Overview

Learn about the most important security concerns when developing websites, and what you can do to keep your servers, software, and data safe from harm.

Course Circullum

Introduction

The importance of security

1. Security Overview

What is security?
Why security matters
What is a hacker?
Threat models
Total security is unachievable

2. General Security Principles

Least privilege
Simple is more secure
Never trust users
Expect the unexpected
Defense in depth
Security through obscurity
Deny lists and allow lists
Map exposure points and data passageways

3. Filter Input, Control Output

Regulate requests
Validate input
Sanitize data
Label variables
Keep code private
Keep credentials private
Keep error messages vague
Smart logging

4. The Most Common Attacks

Types of credential attacks
Strong passwords
URL manipulation and insecure direct object reference (IDOR)
SQL injection
Cross-site scripting (XSS)
Cross-site request forgery (CSRF)
Cross-site request protections
Cookie visibility and theft
Session hijacking
Session fixation
Remote code execution
File upload abuse
Denial of service

Conclusion

Next steps

Kevin Skoglund

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