Comment by fnordpiglet

It’s also absolutely wrong. All communications are discoverable even communications using private devices and services if it’s at all related to what’s being investigated. I know a lot of people use personal devices for corporate work that might involve litigation or investigation thinking it shields them. In fact it implicates them further and taints all their private communications as potentially relevant and discoverable, as well as those they communicate with. It’s a dumb as a stump thing to do.