Faraday bag is a new take on security and privacy for people using a lot of electronic devices and credit cards. So what is exactly a Faraday bag?
Faraday bag explained
Faraday bag is designed in the same manner as the Faraday cage which was invented by Michael Faraday, who was an English scientist who contributed to the study of electromagnetism and electrochemistry. His main discoveries include the principles underlying electromagnetic induction, diamagnetism, and electrolysis.
The idea of the Faraday cage is that anything inside a cage that is made of specific grid size is completely isolated from outside current and magnetic fields since the cage itself will pick up everything upon itself. This means that for example, a human could be inside a cage that is struck by lightning and be perfectly safe and fine.
This idea led to the Faraday bag design, which takes this concept and places a wiring pattern inside clothing in order to isolate all magnetic fields from the outside so your devices and cards are completely cut off from any kind of influence and electromagnetic waves. If the pattern and quality of material for the bag are good, you have a fully safe placeholder for your stuff.
Advantages of Faraday bag
The main advantages, of course, are the privacy and safety of mobile phones and credit cards from outside influences and this is why this bag has been designed in the first place. If the bag is designed properly your phone would not be able to be hacked nor accessed from any outside source, GPS tracking will also be disabled and your phone location will not be visible. Credit cards will also be completely safe from any malicious attack via wi-fi signals.
Disadvantages of bag
Well, the disadvantage of using this bag is a very simple one, since your phone is isolated from outside influence that will also mean that you will not be able to take messages or calls on it while it is in the bag. Notifications from the internet would also be disabled so it is security vs usability deal.