Wiktionary
n. (context Internet English) An online branded trust mark or seal of approval logo which is used by third party site verification entities, (i.e. Truste, BBB, Guardian e-Commerce, etc.) to help protect online consumers by identifying Web sites that have been verified for protecting the online privacy and safety of consumers.
Usage examples of "privacy seal".
It required a little special jimmying, because it was restricted under the Spacedep privacy seal, but I managed to push my way in.
If Rhea had wanted him to find her, she wouldn't have taken the trouble to invoke privacy seal.
I adjusted the privacy seal so that it wouldn't be possible even to slide a single molecule's thickness of anything under the door, and waited out the morning.
A security unit broke his jaw, and the management has him under heavy privacy seal.