There are several steps you can take to define which channels are approved for transferring files and to disallow the transfer of files outside of these channels:
- Establish a file classification system: Develop a system for classifying files based on their sensitivity and the level of protection they require. This could include categories such as confidential, internal use only, and public.
- Define approved channels: Based on your file classification system, determine which channels are approved for transferring different types of files. This could include things like email, secure file transfer protocols, and secure file sharing platforms.
- Communicate the approved channels to relevant parties: Make sure that all relevant parties, including employees and contractors, are aware of the approved channels for transferring files. This could include distributing a list of approved channels or incorporating the information into your organization’s acceptable use policy.
- Implement controls to prevent the transfer of files outside of approved channels: Use tools such as data loss prevention (DLP) systems to monitor data flows and prevent the unauthorized transfer of files outside of approved channels.
By following these steps, you can help to ensure that sensitive files are only transferred through approved channels and that unauthorized transfers are prevented. This can help to protect your organization’s sensitive data and reduce the risk of data breaches.