“I would essentially adopt as the elements of the action for intrusion upon seclusion the Restatement (Second) of Torts (2010) formulation which, for the sake of convenience, I repeat here:
One who intentionally intrudes, physically or otherwise, upon the seclusion of another or his private affairs or concerns, is subject to liability to the other for invasion of his privacy, if the invasion would be highly offensive to a reasonable person.
The key features of this cause of action are, first, that the defendant’s conduct must be intentional, within which I would include reckless; second, that the defendant must have invaded, without lawful justification, the plaintiff’s private affairs or concerns; and third, that a reasonable person would regard the invasion as highly offensive causing distress, humiliation or anguish. However, proof of harm to a recognized economic interest is not an element of the cause of action. I return below to the question of damages, but state here that I believe it important to emphasize that given the intangible nature of the interest protected, damages for intrusion upon seclusion will ordinarily be measured by a modest conventional sum.
These elements make it clear that recognizing this cause of action will not open the floodgates. A claim for intrusion upon seclusion will arise only for deliberate and significant invasions of personal privacy. Claims from individuals who are sensitive or unusually concerned about their privacy are excluded: it is only intrusions into matters such as one’s financial or health records, sexual practises and orientation, employment, diary or private correspondence that, viewed objectively on the reasonable person standard, can be described as highly offensive.”