IMO, the legal landscape here hasn't kept up with changing social conditions. A huge amount of social and personal activity is now getting mediated through tech

IMO, the legal landscape here hasn't kept up with changing social conditions. A huge amount of social and personal activity is now getting mediated through technology, and legal protections have not been correspondingly extended. Cell phones routinely keep a log of who you've been talking to, when, and a big chunk of the actual contents. They also will often collect location history, or broadcast the location to third parties as part of their normal operation.