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AppSec Best Practices [Cheat Sheet]

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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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