Did your security team even bother checking if those badges use rolling codes or static ones? I ran into the same thing at a past job where someone copied a coworker's badge with a cheap reader they bought online. What worked for us was getting a few of us together and showing our manager a live demo, because nothing gets a boss moving like watching their own door open from a copied card. We ended up switching to badges with encrypted chips and adding a PIN pad at the server room and badge readers that check in with the system instead of just trusting the card. It took about six months of pushing but the key was making it a group ask instead of one person complaining. Your faraday pouch is a smart quick fix for now, but the real win is getting your company to treat badges like keys instead of free giveaways.