The very simple Write Zero method does pretty much the same thing, albeit much slower.
Most experts agree that the best way to safely erase is to overwrite the entire hard drive in a single pass. Overwriting one or more files or the entire hard drive just once with a single character (one or zero) should prevent data recovery from the hard drive by any file recovery software - this has been proven by research laboratories, which means most data cleaning methods are overkill. What is the best method of data cleaning? For example, a program might allow data to be overwritten with zeros during the first pass, ones in the second pass, and then random characters for eight more passes. Most data destruction programs also allow you to customize your own data cleaning method with any overwrite pattern and as many passes as you want. NCSC-TG-025 (us Department of security).DoD 5220.22-M (US Department of defense).
Here are some popular data cleaning methods used by data destruction programs: As a rule, the term “data cleaning” refers to software methods of information removal. Technically, there are other methods of destroying data that are not based on overwriting sectors 12 to media, such as destroying media in shredders, demagnetizing hard drives, or burning hard drives and SSDS. Method of cleaning data is a special method by which a data destruction program or file shredder to overwrite the data on the hard disk or other storage device to the stored data securely destroyed without possibility of recovery. Trust Shred-X to protect you, your customer’s and your businesses confidential data, for a NAID AAA-certified service, contact Shred-X.Comparison of Secure Erase and other data removal methods in government agencies Recycling and repurposing – Precious metals and components are recycled or repurposed into usable commodities and parts.Following sanitising and/or destruction, Shred-X will provide a detailed Certificate of Destruction for your records. Destruction – Depending on client requirements the assets are either physically destroyed or repurposed.DoD Standard Sanitisation ensures all data is erased through a multiple step process. Sanitisation – Prior to sanitising, number recording and verification process is completed.Arrival at facility – Shred-X facilities are alarmed and monitored with 24 hour HD CCTV and SCEC approved locking systems.Transportation – Your devices will be transported in a locked and GPS tracked vehicle to the closest Shred-X facility.Personnel – Federal-Police cleared Shred-X personnel collect your assets from your location.Shred-X’s process for NIST & DoD hard drive sanitation:
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