Application Security Guides for Modern Engineering Teams
Start here for broad AppSec coverage across secure implementation patterns, framework-specific controls, and common web attack classes.
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23
Latest Update
May 8, 2026
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10
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AI Security Hub
A focused collection of SecureCodeReviews guides on prompt injection, AI agents, governance, MCP, and enterprise LLM risk reduction.
API Security Hub
Curated guides on OWASP API risks, API authentication, discovery, authorization, and abuse-resistant API design.
Next.js Security Hub
Next.js hardening guides covering Server Actions, App Router, middleware, headers, and common web vulnerabilities in production apps.
OAuth and Modern Auth Security Hub
Guides on OAuth 2.0, PKCE, redirect URI validation, JWT vs sessions, and delegated access design decisions.
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These category hubs group original security content written for engineers, buyers, and reviewers. We keep author names visible on articles, maintain public policy pages, and update important guidance when the underlying risk picture changes.
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Next.js Security Best Practices: Server Actions, Auth, Headers & Hardening Guide
A practical Next.js security guide covering Server Actions, authentication, middleware, security headers, environment variables, and App Router hardening for Next.js 15 and 16 production apps.
OAuth 2.0 Vulnerabilities Explained: PKCE, State, Redirect URI and Token Security
A complete OAuth 2.0 security guide covering redirect URI attacks, state parameter defenses, PKCE, token leakage, scope abuse, and production-ready OAuth 2.0 best practices.
API Authentication: JWT vs Session vs OAuth 2.0 Security Comparison
Compare JWT, server-side sessions, and OAuth 2.0 for API authentication, including security trade-offs, cookie vs token risks, and when each approach is the right fit.
Web Application Penetration Testing: Scope, Methodology, and Deliverables That Actually Matter
A detailed guide to modern web application penetration testing. Covers scoping, authenticated testing, business logic abuse, exploit validation, reporting quality, and what engineering teams should expect from a credible assessment.
Insecure Deserialization: Object Injection, Gadget Chains, and RCE Prevention
Unsafe deserialization looks like routine data handling until it becomes code execution. This article focuses on how these bugs actually show up in real systems, why gadget chains matter, and what teams do to remove the risk instead of just documenting it.
XXE Vulnerability: XML External Entity Attacks and Prevention Guide
XXE is still a live issue because XML keeps showing up in places teams forget to threat model. This article covers the parser behavior that causes file disclosure and SSRF, plus the hardening steps that matter in real SAML, SOAP, and document-processing code paths.
Clickjacking Attack Explained: Prevention, Examples, and Security Guide
Clickjacking is easy to dismiss because the payload is just a click, not an exploit string. This article focuses on where framing bugs still matter, why teams miss them, and how to shut them down cleanly with modern header policy.
How to Hack Ethically: The Complete Beginner's Guide for 2026
Everything you need to start ethical hacking — tools, methodologies, certifications, and legal boundaries explained for absolute beginners.
Cursor, Copilot & Vibe Coding: The Security Risks Nobody Talks About
AI-generated code ships faster — but it also ships vulnerable. Analysis of 10,000+ AI-generated code snippets reveals alarming patterns every developer needs to know.
MCP Server Security: Model Context Protocol Risks, Attack Paths, and Hardening Guide
A practical MCP server security guide covering Model Context Protocol risks, tool execution abuse, prompt injection, overprivileged servers, package trust, and hardening patterns for Cursor, Claude, and AI agent deployments.
Rate Limiting APIs: The Complete Node.js & Express Implementation Guide
Token buckets, sliding windows, Redis-backed limiters, and Cloudflare rules — every rate limiting strategy explained with production-ready code.
How Hackers Crack Passwords: Hashcat, Rainbow Tables & Why bcrypt Isn't Enough
Inside the toolbox of password crackers — dictionary attacks, rule-based mutations, GPU cracking speeds, and why your password policy probably doesn't work.
Burp Suite Tutorial: Web Application Hacking for Beginners (2026 Edition)
Step-by-step Burp Suite walkthrough — proxy setup, intercepting requests, scanning for vulnerabilities, and exploiting OWASP Top 10 flaws in practice.
CSRF Attacks Explained: Tokens, SameSite Cookies & Modern Defenses
Cross-Site Request Forgery still bypasses modern frameworks. Learn how CSRF works, why SameSite cookies aren't enough, and how to implement bulletproof defenses.
Linux Privilege Escalation: 15 Techniques Hackers Use to Get Root
From SUID binaries to kernel exploits — every privilege escalation technique pentesters use on Linux, with detection commands and real-world examples.
Reverse Shell Cheat Sheet: Every Payload for Pentesters (2026 Updated)
Bash, Python, PHP, PowerShell, Node.js, Go — reverse shell one-liners for every language plus listener setup, detection techniques, and defensive countermeasures.
MongoDB NoSQL Injection: Attack Techniques, Real-World Exploits & Prevention
SQL injection's lesser-known cousin — NoSQL injection — is devastating MongoDB applications. Learn operator injection, JavaScript injection, and how to protect your queries.
File Upload Vulnerabilities: Bypass Techniques & Bulletproof Defenses
Double extensions, magic bytes, polyglot files — attackers bypass file upload validation in creative ways. Here's every technique and how to build upload security that actually works.
Web Cache Poisoning: How Attackers Weaponize CDNs and Reverse Proxies
Cache poisoning turns your CDN into an attack amplifier — serving malicious content to every visitor. Learn the mechanics, real-world exploits, and how to defend against it.
WAF Bypass Techniques: How Hackers Evade Web Application Firewalls
WAFs aren't invincible. Learn the encoding tricks, request smuggling, and obfuscation techniques attackers use to bypass ModSecurity, Cloudflare WAF, and AWS WAF.
Threat Modeling for Developers: STRIDE, PASTA & DREAD with Practical Examples
Threat modeling is the most cost-effective security activity — finding design flaws before writing code. This guide covers STRIDE, PASTA, and DREAD methodologies with real-world examples for web, API, and cloud applications.
Building a Security Champions Program: Scaling Security Across Dev Teams
Security teams can't review every line of code. Security Champions embed security expertise in every development team. This guide covers program design, champion selection, training, metrics, and sustaining engagement.
The Ultimate Secure Code Review Checklist for 2025
A comprehensive, language-agnostic checklist for secure code reviews. Use this as your team's standard for catching vulnerabilities before they reach production.