AppSec Best Practices [Cheat Sheet]
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After reading this cheat sheet, you’ll be able to:
Integrate security into every phase of your SDLC with confidence—not chaos.
Conduct threat modeling using frameworks like STRIDE and PASTA, tailored to your team’s maturity.
Embed guardrails directly into developer workflows, including IDEs and CI/CD pipelines.
Apply secure coding practices that address real-world risks like XSS, CSRF, insecure deserialization, and more.
Harden your version control and CI/CD environments to prevent supply chain attacks.
Key Takeaways
- Security starts with designEngage security teams early and define requirements from the outset.
- Automate and validateUse SAST, DAST, and secrets scanning in CI/CD—paired with manual code reviews where it matters.
- Empower developersIntegrate security tools into the IDE to catch issues as code is written.
- Secure coding is more than syntaxIt’s about protecting logic, data, and users through deliberate safeguards.
Is this cheat sheet for me?
This cheat sheet is for developers, AppSec engineers, DevSecOps practitioners, and security-conscious teams who already know the basics—but want practical, advanced strategies they can apply immediately. Whether you’re building in the cloud, managing microservices, or securing monoliths, this guide helps you shift security left without slowing down.
What's included?
5 secure SDLC best practices—covering design, requirements, testing, and developer empowerment
11 secure coding techniques with real-world examples in Python, HTML, C/C++, and more
Deployment guardrails and CI/CD hardening strategies
Tools, frameworks, and actionable tips you can implement today
Examples that go beyond theory—code snippets, templates, and automation guidance
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