Bags and closures for Faraday cycles Electronic equipment are protected against hacking, tracking, espionage, and chain of custody corruption with the help of Faraday Bags, which may entirely block all wireless signals. No one can remotely activate or delete apps or malicious malware, communicate with the device, or access its microphone, camera, GPS location, or data when it is securely sealed in the bag. Phones, computers, automobile key fobs, credit cards, passports, smartwatches, tablets, and building access cards are just some of the valuables that can be safely stored in a faraday bag.