Practical application security
Plain-English guides to finding and fixing security problems in the things you build. No jargon for its own sake, no scare tactics, and no assumption that you have a security background.
SAST vs DAST vs SCA: A Developer's Guide
SAST, DAST and SCA each test a different layer of application security. Here's how to combine them into an actual testing program, not just three separate tools.
What Is Container Security?
Container security covers the image, the runtime, and the orchestration layer — not just the application code inside. Here's what it actually involves.
Core security scanningPenetration Testing vs Automated Security Scanning
Penetration testing and automated scanning are often treated as interchangeable. They're not — here's how they differ and how to use both well.
Core security scanningWeb Application Security Testing: A Complete Guide
Everything developers and founders need to know about web application security testing — methods, tools, process and how to build it into a real program.
OWASP & application securityWhat Is the OWASP Top 10? The 2026 Guide for Developers
The OWASP Top 10 is an awareness document, not a checklist. Here's what it actually covers, what changed in the 2025 edition, and how to use it.
OWASP & application securityOWASP Top 10: A Developer's Guide to Finding and Fixing Each Category
A practical, code-level guide to the OWASP Top 10 — what each category looks like in real applications, and how to actually fix it.
Founder / non-security audienceHow Much Does a Penetration Test Cost?
Penetration testing costs vary widely based on scope, depth and provider. Here's what actually drives the price, and how to budget realistically.
Core security scanningWhat Is a Website Security Scanner? A Developer's Guide
A website security scanner tests a live site or application for known vulnerabilities. Here's what it actually checks, what it misses, and how to use it well.
Core security scanningHow to Scan a Website for Security Vulnerabilities
A practical walkthrough of how to scan a website for security vulnerabilities — what to scan, what tools to use, and how to interpret the results.
Developer securitySAST vs DAST: What's the Difference?
SAST and DAST test applications in fundamentally different ways. Here's how each works, what each catches, and why most teams need both.
Core security scanningWhat Is a Vulnerability Scan? A Clear Explanation for Developers
A vulnerability scan checks systems and applications against known weaknesses. Here's what it is, how it works, and where it fits in a security program.
Security headersWhat Are HTTP Security Headers?
HTTP security headers instruct browsers how to handle your site defensively. Here's what they are, why they matter, and what they can't do on their own.
Security headersHow to Check Your Website's Security Headers
A practical walkthrough of how to check what security headers your website currently sends, what the results mean, and how to fix common gaps.
AI / modern application securityWhat Is Prompt Injection?
Prompt injection is the AI-specific equivalent of a classic injection attack. Here's how it works, why it's hard to fully prevent, and how to mitigate it.
Security headersHow to Set Up a Content Security Policy
A practical, step-by-step guide to setting up a Content Security Policy — how to build a policy without breaking your site, and how to roll it out safely.
Developer securityWhat Is Dependency Scanning?
Dependency scanning checks your third-party libraries for known vulnerabilities. Here's how it works, what it misses, and how to actually use it well.
Topics covered: Developer security · Core security scanning · OWASP & application security · Founder / non-security audience · Security headers · AI / modern application security
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