csv-handler-totally-safe

This package is 100% harmless. It exists as a live-demo prop for a conference talk about npm supply-chain attacks and JFrog Curation.

The postinstall script demonstrates what an install hook can do automatically. It reads the machine's hosts file (/etc/hosts on Unix, the equivalent under System32 on Windows) and prints its contents — nothing else.

It does not touch ~/.ssh, ~/.npmrc, ~/.aws, or any secrets. The hosts file is not secret, but it's a live proof that an install-time script can read arbitrary files off your disk with no approval. Everything is printed locally only — it sends no data anywhere and has zero dependencies.

The point of the demo: npm install runs lifecycle scripts automatically, granting them process-level access without any approval. You just proved it by installing.

Source of the talk: https://emmanuelorozco.com