Lately, we’ve received many questions from customers asking whether our handcrafted leather key fob cases offer RFID-blocking protection—and if it’s really necessary.
The answer isn’t black and white. So let’s clear things up.
🚗 What Is a Relay Attack?
Modern vehicles with keyless entry use wireless signals to detect your key fob nearby. Thieves have learned how to exploit this system using a technique called a relay attack.
By capturing and amplifying your key fob’s signal—even from inside your home—they can trick your car into thinking the key is nearby and unlock it. That’s why signal blocking has become a hot topic.
🧲 Does RFID Blocking Actually Help?
Yes and no.
RFID-blocking technology works very well for credit cards and bank cards that use a 13.56 MHz frequency. However, car key fobs use different frequencies—often 315 MHz, 433 MHz, or others depending on the region and brand.
This means standard RFID-blocking materials might not fully block your key fob’s signal.
🧵 Not All “RFID-Blocking” Cases Are Equal
Many slim cases or wallets marketed as RFID-blocking are only designed for credit cards. For true key fob signal blocking, the material must act as a Faraday cage—fully enclosing and shielding the signal.
If your case isn’t specifically designed for this, it may not offer real protection from relay attacks.
✅ So, When Is It Useful?
Even if not 100% secure, RFID/signal-blocking pouches can:
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Reduce your key’s signal range
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Prevent casual signal hijacking from outside your home or office
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Offer peace of mind when traveling or parking in public places
Some high-end automakers even include blocking pouches with new vehicles.
🧠 Our Position
At this time, our handcrafted leather key fob cases do not include built-in RFID/signal-blocking lining, as it would compromise the fit and feel of our slim design.
However, we always appreciate customer feedback and are exploring future options.
If signal blocking is a priority for you, we recommend using a separate, tested Faraday pouch when storing your key at home or on the go.
Have more questions? Feel free to reach out—we’re here to help.