NIST 800-88 Hard Drive Destruction
The National Institute of Standards and Technology (NIST) has developed Guidelines for Media Sanitization – NIST 800-88. The NIST 800-88 publication is intended to assist organizations and IT system managers in making practical sanitization decisions based on the relative categorization and confidentiality of their information or data. This page specifically deals with NIST 800-88 destruction decisions, techniques and documentation requirements associated with decommissioning IT equipment and disposing of digital media such as computer hard drives.
NIST 800-88 Data Destruction Decision
The decision of which data destruction technique to use should be based on the Data Confidentiality Level. See FIPS 199 for procedures on determining data confidentiality levels. It is important to understand that the most severe rating from any category becomes the information system’s overall security categorization. The following flowchart summarizes the NIST 800-88 Sanitization and Disposition Decision Flow.
It is important to understand that the most severe rating from any category becomes the information system’s overall security categorization. Since we store customer and employee information we feel more confident shredding hard drives.
Data Destruction Techniques
NIST 800-88 Required Documentation
NIST 800-88 describes three methods for sanitizing hard disk drives, 1) erasing, 2) degaussing and 3) shredding. NIST 800-88 considers physically shredding hard drives the most secure form of data destruction and should be used for all levels of confidential information.
The decision to erase or physically destroy hard drives should be based on your organization’s policies and procedures governing data security and destruction. Many business and organizations are now required to have a written Identity Theft Prevention Program per the Federal Trade Commission’s Red Flags Rule.
Conforming to NIST 800-88 guidelines requires proper documentation of data destruction or more commonly known as a Certificate of Destruction. NIST 800-88 documentation requirements.