Phase 6: Supply Chain Security & Slopsquatting · 50 min · Socket.dev · Snyk · Aikido

Dependency Verification & Allowlisting

Treat every AI-generated import as untrusted input. Allowlist, scan, verify.

Hiring signal: Engineers who can build dependency allowlists and integrate SCA scanning demonstrate production-grade supply chain security skills.

What you will learn

Build a dependency allowlist that blocks unapproved packages
Integrate SCA scanning with Socket.dev, Snyk, or Aikido
Scan nested dependencies for transitive vulnerabilities
Treat every AI-generated import/require as untrusted input

The Problem

You've learned to detect hallucinated packages (Lesson 2). But detection is only the first step. You also need to prevent unapproved packages from entering your codebase. This lesson covers dependency allowlisting, SCA scanning, and treating AI-generated imports as untrusted input.

The Allowlist Approach

An allowlist is a list of approved packages. Only packages on the allowlist can be installed. New packages require manual review.

AI generates: import react-codeshift
    ↓
Allowlist check: Is "react-codeshift" on the allowlist?
    ↓
No → BLOCK installation, require manual review
    ↓
Manual review: Run 5-signal detection (Lesson 2)
    ↓
All signals safe → Add to allowlist → Allow installation
Any signal suspicious → REJECT

Allowlist Structure

{
  "approved_packages": [
    {
      "name": "requests",
      "ecosystem": "PyPI",
      "version": ">=2.28.0",
      "publisher": "pythonorg",
      "approved_date": "2024-01-15",
      "approved_by": "security-team",
      "purpose": "HTTP client for API calls"
    }
  ]
}

Unlock the full lesson

You've read the first 2 sections. The rest of this lesson covers SCA Scanning Tools, Build It — plus a hands-on lab, quiz, and project artifact.

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