# Artifact Integrity Verification Missing

> Detects download and execution of artifacts without cryptographic hash or signature verification.

- Skill: `zakirkun/artifact-integrity-verification-missing` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add zakirkun/artifact-integrity-verification-missing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/zakirkun/artifact-integrity-verification-missing/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: zakirkun (https://skillmd.com/u/zakirkun)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/zakirkun/artifact-integrity-verification-missing

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# Artifact Integrity Verification Missing

## Overview
Downloading binary artifacts, scripts, or packages from URLs without verifying their cryptographic signatures or hashes allows man-in-the-middle attacks or compromised CDN attacks to deliver malicious code.

## Remediation
- Always verify SHA256 hash of downloaded artifacts
- Use `--checksum` flags where available
- Use Subresource Integrity (SRI) hashes for CDN resources in HTML
- Verify GPG signatures for critical software