The audacity of that email was that it made accessing "need-to-know" documents internally (!!!) a fireable offense.
In a kafkaesque move, "need-to-know" was not determined by labeling or access restrictions. Therefore, you can't know you are accessing a "need-to-know" document until you do.
In short, this made using internal search engine fireable. It made clicking any link on the mail list fireable.
It said that everything should only be shared on a need to know basis, basically ending the culture of all documents being open by default unless there is a need to hide it. When that change took into effect all documents I had were automatically set to hidden and I had to reshare them with everyone who needed to see them.
I couldn't find that memo, could you please link to a copy?