npm packages loadyaml and electorn were removed from the npm registry for containing malicious code. Upon installation the package runs a preinstall script that writes a public comment on GitHub containing the following information:

• IP and IP-based geolocation
• home directory name
• local username

The malicious packages have been removed from the npm registry and the leaked content removed from GitHub.

References

• https://www.npmjs.com/advisories/1562