Commerce File adds the ability to sell access to file downloads to your Drupal Commerce site. It extends the Commerce License module with a new license type that grants customers access to download the files you upload to the products they purchase.
SecKit provides Drupal with various security-hardening options. This lets your mitigate the risks of exploitation of different web application vulnerabilities.
SecKit facilitates certain mitigations for Cross-site Scripting, Cross-site Request Forgery, and Clickjacking, among other issues.