DIN Norm

DIN 66399 defines the different classes of protection, categories of data carriers and security levels for the destruction of media containing confidential data.

With the new technologies, confidential data can be stored on multiple types of media (paper, hard disks, tape, etc.) and their destruction can be classified according to different levels of security defined according to the difficulty in reconstitute the information after destruction of the support. The DIN standard classifies data carriers into 6 categories, each represented by a letter.

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THE DIFFERENT MEDIA TYPES

cd
OPTIC (O)
CD, DVD, Blu-ray
tapes
Magnetic (T)
Floppy disks, credit cards, tapes,
magnetic tapes, cassettes
hd
Hard drives (H)
Hard drives and computers (not SSD type)
elec
Electronic (E)
Flash media, SD cards, chip cards, USB stick, SSD disk, cell phones and tablets
film
films (F)
Films and microfilms

DIFFERENT PROTECTION CLASSES

DIN 66399 provides 3 protection classes: normal, high, very high. They determine the level of sensitivity of the data by a classification (internal data, confidential or secret) and allow everyone to know what is the level of security needed for the destruction of its data.

1
CLASS 1
PROTECTION NEED: Normal
SECURITY LEVEL: 1,2,3
USE: Internal documents, accessible by a large number of employees
Examples : circulars, newsletters
2
CLASS 2
PROTECTION NEED: High
SECURITY LEVEL: 3,4,5
USE: Confidential documents with restricted access
Examples: personal data, memos
3
CLASS 3
PROTECTION NEED: Very High
SECURITY LEVEL: 4,5,6,7
USE: Secret documents, accessible only by a few employees.
Examples: R&D documents

DIFFERENT SECURITY LEVELS

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