Comment by florkbork

Or a trail of documentation can add to a future criminal prosecution.

Hypothetically if you were running an organisation that was corrupt and the political winds turned against you, would you carefully preserve accurate records that documented crimes you or your underlings performed and provide an accurate handover? Or would you shred, obfuscate and destroy as much information as possible on the way out?

If the latter, would detailed map of your command and control structure as understood by your IT department / HR be a risk to you?