Can you prevent the downgrade of a sensitivity label?
I know you can require a justification to downgrade a label to a less restrictive label, but can you prevent it? It seems a logical extension of this capability but I cannot find any articles to suggest this is possible. The only thing I can think of is to encrypt the label, and don't allow the "Edit rights". I am going to be testing this, but I was wondering if there is another (better) way.