Not a lawyer, but that's not how subpoenas work in my understanding. A subpoena is a legal writ compelling the production of evidence or testimony.[1] If Meta

Not a lawyer, but that's not how subpoenas work in my understanding. A subpoena is a legal writ compelling the production of evidence or testimony.[1] If Meta had access already, the data they have could therefore be subject to a subpoena. They already are responsive to subpoenas for information from facebook for example[2]. However a subpoena can't compell them to change their app to do something it doesn't currently do - it can only get them to provide evidence they have. [1] https://uk.practicallaw.thomsonreuters.com/2-501-7136?contextData=%28sc.Default%29&transitionType=Default https://uk.practicallaw.thomsonreuters.com/2-501-7136?contex... [2] https://www.zdnet.com/article/heres-what-facebook-sends-the-cops-in-response-to-a-subpoena/ https://www.zdnet.com/article/heres-what-facebook-sends-the-...