It is just amazing with nearly weekly news of hack, security breaches, and alarming cyber crimes (too often without describing the ingenuity or deviousness involved) that computers, hard drives, and/or RAM are not wiped clean when they are disposed of as they can be a valuable source of intelligence for those who want it. However what is worst is that there are so many good and free apps are available (DBan, Eraser, Disk Wipe), and if you need an industrial size app, there is Blancco Drive Eraser and KillDisk, and few others; or you can buy your own terminal solution easily.
1: Don’t merely format a disk or RAM as it does not erase the data, only the address tables.
2: Media sanitization and secure data sanitation standard found in NIST SP 800-88 presents the best methodologies to clear, purge, and destroy digital data; however, the responsibilities and challenges to clear, purge and destroy digital data rest squarely with the information owner, and no he or she cannot delegate the responsibility ever.
3: The final solution is using a data destruction system (available on Amazon under hard drive crusher or for a more complete range of solutions see Security Engineering Machinery (SEM) site for ideas).
Edwards, Jim, 2019. “One of the West’s biggest cybersecurity vulnerabilities is our idiotic habit of sending servers full of sensitive information to foreign countries” Business Insider, Sunday, January 6, 2019.