What is a procedure for safeguarding multiple copies of a proposal?

To safeguard multiple copies of a proposal, first, ensure that all copies are stored in a secure, centralized location, such as a locked filing cabinet or a passWord-protected digital folder. Implement version control to track changes and maintain the integrity of the document. Regularly back up digital copies to a secure cloud service or external hard drive, and limit access to authorized personnel only. Additionally, consider using encryption for sensitive information to further enhance security.