NIST 800-88: Information deletion strategies
The NIST 800-88 guide is an industry standard for the secure deletion of electronic information, establishing a framework to ensure that sensitive data is deleted in a way that prevents unauthorised recovery.
Key Principles of NIST Guide 800-88
Information categorization
- Definition and scope: This guide emphasises the importance of categorizing information according to its level of confidentiality and the impact that its unauthorised disclosure could have.
- Implementation: Organizations should evaluate and classify their data to determine the most appropriate erasure method, whether through wiping, purging, or physically destroying the media.
Secure Erasure Methods
- Cleaning: Intended to protect information against standard data recovery techniques, applicable to media that will be reused internally.
- Purge: Provides protection against more advanced data recovery techniques, recommended for media that will change control or be discarded.
- Physical destruction: Ensures that the media is completely unusable and irreparable, indicated for when the media cannot be purged.
Verification, Documentation and Compliance
Deletion Verification
- NIST 800-88 recommends verifying the effectiveness of secure erasure to ensure that the data has been properly deleted and is not recoverable.
- This includes performing audits and sample tests to validate that deletion methods have been implemented correctly.
Process documentation
- The guide highlights the importance of meticulously documenting secure erasure processes, including the methods used, the date of erasure, and verification of the effectiveness of the process.
- This documentation is crucial to demonstrate compliance with internal policies and external regulations on information protection.
Compliance and Continuous Improvement
- Adhering to NIST 800-88 helps organizations comply with best practices and regulatory standards for information protection.
- Regularly reviewing erasure processes and updating policies based on technological advances and regulatory changes are critical to continuous improvement of information security.
Related Blancco Products
Other Secure Erasure Compliance Guides
- · National Security Scheme (ENS)
- · ISO/IEC 27040:2015: Information Storage Security
- · General Data Protection Regulation (GDPR)
- · National Institute of Standards and Technology (NIST 800-88)
- · Payment Card Industry Data Security Standard (PCI DSS)