The npm package 'xo-shipping-options' version 88.8.9 contains malicious code that installs a dependency from a custom domain which executes an information stealer during installation. This malware targets sensitive tokens related to npm, git, and CI/CD environments. Any system with this package installed should be considered fully compromised, and all stored secrets and keys must be rotated from a different, clean system. Removing the package alone may not eliminate all malicious components.