The "ctx" hosted project on "PyPI" (https://pypi.org/project/ctx/) was taken over via user account compromise and replaced with a malicious project which contained runtime code that collected the content of "os.environ.items()" when instantiating "Ctx" objects. The captured environment variables were sent as a base64 encoded query parameter to a heroku application running at "https://anti-theft-web.herokuapp.com". If you installed the package between May 14, 2022 and May 24, 2022, and your environment variables contain sensitive data like passwords and API keys (like "AWS_ACCESS_KEY_ID" and "AWS_SECRET_ACCESS_KEY"), we advise you to rotate your passwords and keys, then perform an audit to determine if they were exploited.