Let's have a competition to see who can rewrite the above message in the clearest way with the least number of words
If I was to attempt to interpret it, I'd say it means 'If you get information from anyone you mustn't tell them you won't use it.'
Sadly, it's clearly a legal arse-covering statement rather than a simple informative message. I can see why legal documents get so complex, eg:
"Were you aware you shouldn't make an agreement not to divulge this information?"
"Yes, but I didn't make an agreement, I gave him a nod and a wink."
"Ah yes, but as clearly stated in this Minute dated 27 July 2011, that would imply an agreement, would it not?"
"Take me away, guv, you got me.",
but f*#& me, that's no way to write operating rules. Of course you need the legal basis, but as anyone who has had to read a legal contract knows, the language can be damn near impenetrable sometimes.