DATA SANITIZATION

DATA SANITIZATION

1. WHY

   • No longer Need - EoL/Sale/donate
   • Declass &reuse
   • Object Resue-Data/Remenance
   • Policy/Classification
   • NIST SP 800-88
   • Destruction

2. 1. ERASING

   • Deleting (Links)
   • Until overwrite
   • Formatting
   • SSD

3. 2. CLEARING

   • Overwrite
   • 3 Pass
   • Not traditional Tools but forensics
   • Ghost Image

4. 3. DEGAUSS

   • Magnetic Field
   • Magnetic-HDD
   • Destroy Electronics
   • No assure
   • Not Optical

5. 4. PURGING

   • Intense Clearing
   • Multiple overwrites
   • Not Top Secret - Effort
   • Damaged Media-Destroy

6. 5.DESTROY

   • Top Secret/Final Stage
   • Incinerate, pulverize, crush
   • Disintegration (2mm)
   • CDs/DVDs/Platters

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