Hard Drives (H) – DIN Standard 66399

6:10 pm Paul Falcone

Hard Drives (H) - DIN Standard 66399

DIN 66399 is now referenced as ISO/IEC 21964

DIN 66399 Material Classification H refers to information on hard drives with magnetic data carriers. The Security Levels run from H-1 to H-7 with H-1 being recommended for data carriers with general data which have to made illegible, to H-7 for data carriers with top secret data where the strictest security standards must be maintained.

H1

  • Recommended, for example, for data carriers holding general data to be rendered illegible
  • Particle size: mechanically/electronically inoperable
  • Shredded data can be reproduced without special knowledge or equipment, although the process is time-consuming

H2

  • Recommended, for example, for data carriers holding general data to be rendered illegible
  • Particle size: damaged
  • Shredded data can be reproduced with equipment, although the process is time-consuming

H3

  • Recommended, for example, for data carriers holding sensitive, confidential and personal data
  • Particle size: Deformed
  • Shredded data can only be reproduced with maximum effort and special equipment

H4

  • Recommended, for example, for data carriers holding particularly sensitive, confidential and personal data
  • Max. material particle size 2000 mm²
  • Shredded data can only be reproduced utilizing equipment that is not readily available commercially

H5

  • Recommended, for example, for data carriers holding confidential information
  • Max. material particle size 320 mm²
  • Shredded data is unlikely to be reproduced even with special equipment

H6

  • Recommended, for example, for data carriers holding confidential information demanding an exceptionally high level of security
  • Max. material particle size 10 mm²
  • Shredded data cannot be reproduced even with special equipment

H7

  • Recommended, for example, for data carriers holding strictly confidential information demanding the highest security precautions (e.g. classified and top secret)
  • Max. material particle size 5 mm²
  • Shredded data cannot be reproduced in any way with the current state of science and art

Explore DIN 66399 Standards

Paper (P)

Hard Drives (H)

Electronic Data (E)

Magnetic Media (T)

Film (F)

Optical Media (O)

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