Security Tactics for Developers
• 10 lessons
Most security breaches don’t happen because someone cracked an algorithm. They happen because a developer trusted user input they shouldn’t have, committed a secret to git, or shipped with default headers.
Ten short lessons on the mistakes that actually make it to production. Each one covers why it matters, what to do, and a working code example you can use right away.
Course Content
#1
Secure Input Validation
#2 Every piece of user input is a potential attack. Here is how to treat it that way. 2 min read
Secrets Management
#3 API keys in your codebase are a breach waiting to happen. Here is the right way to handle them. 2 min read
Preventing SQL Injection
#4 SQL injection is old and still everywhere. One habit prevents almost all of it. 2 min read
Secure Session Management
#5 Sessions are how your app remembers who someone is. Get this wrong and attackers can become them. 2 min read
Cross-Origin Resource Sharing (CORS)
#6 CORS is not a security feature you can skip. A misconfigured policy is an open invitation. 2 min read
Rate Limiting
#7 Without rate limiting, your API is open to brute force attacks and abuse. Here is how to close that door. 2 min read
Dependency Security
#8 Your app is only as secure as the packages it depends on. Most developers never check. 2 min read
Logging Without Leaking Information
#9 Logs are for debugging, not for storing secrets. Here is where developers usually get this wrong. 2 min read
Content Security Policy (CSP)
#10 CSP is your last line of defense against XSS. It tells the browser exactly what is allowed to run on your page. 2 min read
Security Headers
A handful of HTTP headers can block entire categories of attacks. Most apps ship without them. 2 min read