The faker-security Python package allows developers to generate fake security-related data, such as CVSSv3 vectors, CVE identifiers, semver versions, and CWEs, for use in testing and development. It can be used with the factory_boy and Faker packages to simplify test-writing experience during development, reducing lines of code and noise from fields that are not relevant to the test. The package is open-sourced by Snyk and can be installed via pip, with a recommended configuration in conftest.py for pytest users.