In-Transit: Use secure protocols (such as HTTPS or SFTP) to encrypt data during transmission over networks.

At-Rest: Employ encryption for data stored on servers or in cloud storage to protect against unauthorized access.

Implement role-based access controls (RBAC) to ensure that users have appropriate permissions based on their roles and responsibilities. Use fine-grained access controls to specify who can view, edit, or delete specific files or folders.

Utilize strong authentication mechanisms, such as multi-factor authentication (MFA), to verify the identity of users accessing shared files and collaboration platforms.

Choose collaboration tools and platforms that prioritize security features, compliance standards, and data protection. Ensure the platform supports secure communication and file transfer protocols.

Implement endpoint protection measures, including antivirus software and device encryption, to secure devices used for file sharing and collaboration.

Enable audit trails and monitoring features to track user activities, file access, and changes. Regularly review logs to identify and respond to security incidents.

Implement DLP solutions to monitor and control sensitive data to prevent accidental or malicious leakage of confidential information.

Use secure protocols like SSH (Secure Shell) or HTTPS for file transfers, and avoid unsecured protocols like FTP.

Encourage users to adopt secure file naming conventions to avoid accidental sharing of sensitive information through miscommunication.

Consider implementing end-to-end encryption, where only the intended recipients can decrypt and access the shared files.