NEW 2026
Your key fob unlocks a car from across the wall. Your phone leaks your location 24/7. Your contactless card can be read through your pocket. NullSignal kills all three the moment you seal the flap.
Protect my family — 50% off →
Linda woke up on a Wednesday morning to an empty driveway. No broken glass, no alarm, no witnesses. Her SUV was gone — taken overnight while she slept ten feet from the front door. The police told her it was a relay attack. The thieves copied her key fob signal right through the wall. She ordered NullSignal that same morning. Now every key in the house sleeps inside one.
One week after Robert retired, their son’s car vanished from the same street. Same method — silent, no damage, no trace. When their neighbor’s truck disappeared three days later, Diane said enough. She bought NullSignal for every fob in the family. Three households, six pouches. Nobody has had a problem since.
His neighbor’s SUV disappeared overnight. No alarm, no broken window, nothing on the cameras except two figures walking up the driveway with a small device. Marcus ordered NullSignal the next morning — one for his truck, one for his wife’s car, and two for his parents across town. Every fob in the family goes dark at night now.
Investigation · NullSignal Security Desk
Your key fob is beaming through every wall in your house. Your phone is pinging its location every few seconds. Your contactless card is answering anyone who asks, no PIN required. Three different signals, one common weakness — and the tools to exploit them cost less than the ticket to a movie.
“Most victims never even see it happen. The car is just gone in the morning, and there’s not a scratch on the door.”
· a vehicle-crime detective we spoke toThe relay attack is only the loudest of three. One thief catches your key fob’s signal through the wall, the other stands by your car and relays it — and the car unlocks as if the key were in their hand. In a crowd, a hidden card reader lifts your contactless card or passport in a second, no PIN, no contact. And all day long your phone quietly broadcasts where you are to apps, ad brokers and anyone who bought that data · airplane mode leaves GPS, NFC and Bluetooth wide awake.
Your fob is copied through the door and your car drives off · in under 15 seconds, without a mark.
A hidden reader in a crowd clones your contactless card, passport or access badge · no PIN, no contact.
Your location leaks 24/7 to apps and brokers. “Off” is not off.
The fix
NullSignal is a military-grade Faraday cage you can carry. Slide in a key fob, a phone, a stack of contactless cards or an access badge · the conductive lining seals a shield around everything inside. Passive, instant, impossible to hack around.
How it works
Slide your phone, key fob, access badge or cards into the silver-lined sleeve.
Fold the top twice and press the hook-and-loop flap to complete the shield.
Everything inside is invisible · untrackable, unhackable.
Reader story
She wrote to us after it happened
I do not have a garage. The car sits on the street like everyone else’s on my block. I woke up on a Tuesday and it simply was not there — no glass on the road, no alarm, nothing.
What actually changed my mind was my cousin in Los Angeles. Brand new car, taken the same way, same week. That is when I stopped calling it bad luck and started reading about signal blockers.
I bought one for me, one for my husband, and two for my parents. Now there is one by every door in the family — we were not taking any chances after that.
Free U.S. shipping · 90-day money-back guarantee
Our story
We didn’t design a gadget. One of us took the police reports; the other broke these signals for a living. We built the pouch we’d give our own families.
“Relay theft went from rare to routine on my watch — and skimmers now target cards in crowded transit stations the same way. A sealed Faraday pouch is the single most effective step a family can take.”
“We tested NullSignal against all five signal types — WiFi, GPS, 5G, Bluetooth and RFID/NFC — and refused to ship it until it killed every one. Military-grade shielding, not a gimmick.”
Keyless theft pushed insurers to raise premiums, demand trackers, and sometimes refuse payouts when a car is taken without forced entry. A single skimmed card can burn a weekend of phone calls. A pouch that costs less than a tank of fuel removes the signal all of these attacks depend on · and shows you took reasonable steps. Do it before it happens, not after.
See what a pouch costs against one claim →2,000+ homes protected · cars, phones & cards
“Two guys were on my driveway at 2 a.m. with a box. My new SUV almost unlocked. I ordered NullSignal the same morning. Now every fob in the house sleeps inside one.”
“I bought one for me, one for my husband, and two for my parents. After what happened to my cousin in Los Angeles, I was not taking any chances with the family.”
“I work in security — airplane mode is not off, and I know it. My phone sleeps inside NullSignal every night. GPS, Bluetooth, cellular · all dead until I take it out. Total silence, no app, no batteries. Exactly what a real Faraday cage should do.”
“My Amex got scanned on the L train two months ago · I caught the alert before I got home. Now my cards ride in a NullSignal sleeve inside my wallet. No signal to steal. Zero anxiety on crowded platforms.”
“I am retired. I do not need the stress of dealing with insurance and a missing car. One pouch by the door changed everything.”
“Two cars, two teenagers, four fobs. After a neighbor lost a Range Rover overnight with zero damage, I ordered the family pack the same day.”
“Tried a cheap pouch first. Signal still got through. This one kills it completely. You can feel the difference in quality.”
Free U.S. shipping · 90-day money-back guarantee
Risk-free · summer sale 50% off
Keep one in every car and bag, gift the rest. Every order is backed by a 90-day money-back guarantee · test it against your own car, your own card, your own phone — if it doesn’t kill the signal, send it back for a full refund.
Protect my family — 50% off →Questions
Yes. Once sealed inside, NullSignal blocks WiFi, GPS, cellular / 5G, Bluetooth and RFID/NFC. Nothing gets in or out until you open it.
The 6-pack. Almost everyone finds more devices than they expected once they count: two cars, a spare fob in a drawer, a partner set by another door, a stack of contactless cards, a phone by the bed. It is the cheapest per pouch and covers the household in one order — and the $19 handbook comes free with it.
Yes. A key fob sealed inside cannot be detected or relayed, so thieves have no signal to copy. Your family’s cars stay exactly where you parked them.
Yes — the same shielding that hides a fob hides a contactless card, an access badge and a phone. RFID / NFC skimming stops the moment the flap seals, and your phone goes fully off-grid (GPS, cellular, Bluetooth and WiFi all silent) as long as it is inside.
No. Airplane mode leaves GPS, NFC and fob radios active. Physical shielding is the only reliable block — and the only method law enforcement recommends.
With a full-width hook-and-loop flap. Fold the top and press it shut across the whole opening — that is what completes the shield.
Every order is covered by a 90-day money-back guarantee. Not convinced? Return it for a full refund. You risk nothing.
Keys, phone, cards — all invisible the moment the flap seals. Join thousands of families who decided not to wait until it was too late.
Protect my family — 50% off →