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DEFENCE IN DEPTH
Defence in depth: sources

MAXIMUM DID RATING FOR SOURCES

 

As explained in the module on defence in depth, this table shows the link between source category and the maximum defence in depth rating. This link is based on the rating of the maximum potential consequences for each source category that was derived and is also shown in the table.

Source category

Rating for maximum
potential consequences

Maximum rating under
defence-in-depth

1

2

3

4

To calculate the upper limit to the defence in depth rating, you need to know the activity of the source. From the activity, you derive the category and from the category, you derive the upper limit to the defence in depth rating. The next slide has some examples.