Short Answer 
To protect classified data, store it in a GSA-approved container, destroy any improperly marked materials, and avoid misuse of classification markings and networks. Following these steps helps secure sensitive information from unauthorized access and misuse.
Step 1: Store in a GSA-Approved Container
The most effective way to protect classified data is to store it in a GSA-approved container. This method ensures that classified materials are kept securely and in compliance with regulations set by the General Services Administration. By using such containers, you significantly reduce the chances of unauthorized access to sensitive information.
Step 2: Destroy Inappropriately Marked Materials
It is essential to destroy any inappropriately marked materials to prevent sensitive information from being misused or accessed by unauthorized individuals. This includes documents that are outdated or incorrectly marked, ensuring that no classified information can fall into the wrong hands.
Step 3: Avoid Improper Use of Classifications
Be cautious about how classified data is handled, particularly with respect to removing classification markings and using classified networks. Removing markings can lead to ambiguity regarding the data’s sensitivity, while using classified networks for unclassified tasks poses significant security risks. Always adhere to proper protocols to maintain data integrity.