Third Party doctrine isn&#x27;t a runabout. It&#x27;s inherent in the text of the 4th amendment:<p>&gt; The right of the people to be secure in <i>their</i> persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated...<p>Information <i>I</i> have about you is not <i>your</i> information, and you can&#x27;t invoke the 4th amendment to protect it. Data held in the cloud is different. At least arguably, you have a property right to that data even if a cloud provider is holding it for you. You can&#x27;t say that about IP addresses, IP address logs, call data records, etc. That&#x27;s the company&#x27;s data <i>about you</i>. You have no property interest in it, and mostly you don&#x27;t even have access to it.