If your devices are confiscated
Surveillance self-defense protects your data from being intercepted by cops, devoured by your telecommunications providers, and sold to compile dossiers about you. But if the cops have your device and have a warrant, that’s a whole other story. This resource has examples of what cops were able to extract from a J20 defendant’s phone, which included information about contacts and Signal messages. The good news is that there are steps you can take to limit what cell phone extraction devices are able to pry out. Here’s a document about police hacking capabilities and why it’s important to encrypt your devices and set strong passwords.
