Officers are urging households to put their keys, cards & phone in this $25 pouch before bed — here’s why
A former officer and a signals engineer just went public with a 7-step warning about the invisible signals thieves are quietly using to steal cars from driveways, drain bank cards through pockets, and track phones across town — from the sidewalk, without a single mark on the door.
●Exclusive · surveillance still
2:14 a.m., a residential driveway. No broken glass. The car was gone before the porch light finished flickering. Investigators say cases like this are up sharply in the U.S., the U.K. and Canada — and they are only one third of the story.
If you drive a car built after 2015, keep a contactless bank card in your pocket, or take a phone to a stadium, a train or a festival — the next sixty seconds are the most important thing you’ll read this month.
Because there is a specific, boring little piece of consumer gear that police officers, cybersecurity engineers and insurance underwriters in three countries now quietly buy for their own families — and almost nobody outside those circles has heard of it.
It costs less than a tank of fuel. It has no batteries, no app, no setup. It is a Faraday pouch, and here are the seven reasons NEWSPOST has been telling readers to keep one for their keys, one for their cards, and one for their phone.
It takes 15 seconds. No noise. No glass. No key.
2:14 a.m. He is not looking at the door. He is listening for a set of keys on the other side of the wall.
It is called a relay attack. Two people. Two small radio boxes bought online for the price of a games console. One stands near the house, one stands by the car. The signal a key fob is quietly whispering — even from a bowl by the door — is picked up, relayed across the driveway, and the car unlocks itself.
Total time on the property is often under fifteen seconds. No forced entry. No alarm. Nothing to hear.
Your bank card answers any stranger with a reader in a jacket
A concealed scanner only has to get close. On a packed train, getting close is the easy part.
Contactless cards, access badges and modern passports answer almost any reader that pings them a question — that is what makes tapping to pay so fast. On a packed train, a festival crowd or a stadium concourse, a hidden scanner brushing past a pocket can copy that answer in under a second. No PIN. No contact. No idea it happened.
The charges are almost always small on purpose: two amounts the size of a lunch that get scrolled past on the banking app. That is why most victims only find them weeks later — and why so few of them are ever reported at all.
Since we first published this story, readers have been messaging to ask which pouch actually works — not the flimsy card sleeves on Amazon. The one law enforcement officers and cybersecurity engineers keep pointing us back to is NullSignal, currently 50% off. See the recognized solution →
“Off” is a lie. Airplane mode is software.
Your live location is one of the most valuable things you carry — and the easiest of all to leak.
People assume switching a phone off, or flipping on airplane mode, draws the curtains. It does not. Airplane mode politely asks some of the radios to quieten down — but Bluetooth, NFC and location beacons keep talking.
Apple’s own Find My network can locate an iPhone up to 24 hours after it is powered off. A modern car key fob keeps transmitting whether the car is nearby or not. If a signal can leave a device, software alone cannot be trusted to stop it.
The only reliable way to silence a signal is to physically block it. Every time. No exceptions.
Your key fob is broadcasting all night — from a bowl on the counter
The most common hiding spot is a dish by the front door. From the pavement outside, that is roughly three metres of plasterboard between a fob and a receiver.
Here is the part almost nobody realises. Your fob does not go to sleep when you put it down. It transmits a short-range identity signal 24 hours a day, so the car recognises you the second you approach.
That signal walks straight through plasterboard, wood and glass. A Faraday pouch is a sealed conductive lining that completely surrounds whatever you drop inside — and stops the signal cold. No batteries, no app. Drop the fob in, fold the flap, and the airwaves go quiet.
Your phone sells your exact location to strangers every second
By the time the notification arrives, the person who took it is three stops away.
The New York Times obtained a single commercial data file that refreshed a phone’s location up to 14,000 times a day. Consumer Reports documented that the average person is tracked by more than 2,230 companies they have never heard of.
None of it is illegal. Most of it is baked into apps agreed to years ago. And none of it stops when the screen goes dark. The only way to end the transmission is to physically enclose the device. When a phone goes into a Faraday pouch, it drops off every scanner, app, tower and beacon in the room. Instantly.
Insurers are refusing claims — and quietly raising premiums
6:32 a.m. No glass. No tyre marks. Just a dry rectangle where a car spent the night.
Insurers have noticed all of this and they are quietly moving the goalposts. Premiums on keyless models have risen. A growing number of policies now require you to keep the keys in a Faraday pouch as a written condition of cover. And a rising share of claims — for cars, for skimmed cards, for identity theft — are challenged or refused outright when there is no evidence the owner took basic prevention steps.
On paper it can look like the doors were simply left unlocked, the card left in an open bag, the phone left unattended. The burden is on the policyholder to prove otherwise. A $25 pouch is one of the simplest ways to show, in writing, that reasonable steps were taken.
The $25 fix that stops all three at once
Inside NullSignal: a dual-layer shielded lining, sealed by a full-width hook-and-loop flap. Fob, cards or phone go in — signal goes silent.
NullSignal is a Faraday pouch — a lined bag that physically blocks WiFi, GPS, cellular / 5G, Bluetooth and RFID / NFC signals. One pouch does all three jobs: it silences a car key, it seals a stack of contactless cards, and it takes a whole phone off the grid.
Not a gadget. Not magic. Just 100-year-old physics in a pocket-sized black shell, designed by a former police officer and a signals engineer who had, between them, seen this crime from both ends: the doorstep and the antenna. The pair refused to sell it until every one of the five signal types read dead inside the seal.
“We don’t have a garage. Almost nobody on my street does. Last October I came out at half past six with my coffee and the space was just empty. No glass. No alarm. Nothing. I stood there for a full minute genuinely trying to remember if I had parked somewhere else the night before.”
“The officer told me straight away not to expect it back. Cars like mine are in a container inside a week. Insurance paid for the car. They did not pay for what was in it — my work laptop, my grandmother’s necklace on the front seat. That is just gone. There is no form for that.”
“So I went looking. I bought the family pack — one for my keys, one for my husband’s, one for each of the kids to keep their bank cards in on the train, and I sent a pair to my parents because my dad still keeps his fob in a dish by the front door, exactly like I used to.”
“My daughter had two charges she never made after a rush-hour ride, twenty and then forty, small enough that you almost do not query it. Now her card sits in the pouch on the way to school. Nothing to read, nothing to copy.”
“It’s a small black thing that lives by my door now. I only wish I had had it a year earlier.”
Reader account submitted to NEWSPOST and published with permission. Individual experiences vary.
Take your keys, cards and phone off the grid tonight
For less than the cost of a tank of fuel, you can shut down the exact signals these thieves depend on — and keep one in every car, bag and drawer for the people you love. Right now NullSignal is 50% off, ships free, and is backed by a 90-day money-back guarantee: seal your own fob inside, walk to the driveway, try to open your car. If it doesn’t kill the signal, send it back for a full refund.
Protect my family — 50% off →Relay theft is not going away. Neither is skimming. Neither is tracking. But of every security risk in a modern home, this is the rare one with a fix that costs less than dinner, takes no learning, and works the first time you use it.
The people who study these attacks for a living have already made their choice. Whether readers make the same one tonight, or after something happens, is in the end the only variable left.
Reader questions answered
Does one pouch really cover a car key, cards and a phone?
Yes. The pouch is sized for a full car fob, a stack of five to eight bank / access cards, or a modern smartphone (up to Pro Max sizes). What is inside is silenced — whether that is one fob or a whole wallet.
Does it really block a car key from three feet away?
Yes. The lining is a full conductive shield that surrounds the fob on every side and is sealed by a hook-and-loop flap across the whole opening. When the flap is closed, the signal cannot leave the pouch — that is what makes the car unresponsive to the relay device outside.
Do I lose GPS or notifications on my phone while it’s inside?
Yes, on purpose. That is the point — the phone drops off every scanner, tower and beacon until you take it out. Everything reconnects within seconds.
How is this different from the $5 sleeve on Amazon?
Most cheap sleeves use a thin single layer of foil that starts to fail after a few weeks of daily folding, and they only cover one card at a time. NullSignal uses a dual-layer conductive lining, a microfiber exterior, and a full-width flap that seals across the entire opening — and it’s sized for a full fob, phone or a stack of cards.
Why do people buy more than one?
Because a thief only needs the one you forgot about. Most households have two cars, a spare fob in a drawer, a partner’s keys by another door, plus wallets and phones that never travel together. The multi-packs are where nearly all the value sits — and right now the 6-pack ships with the free Signal Safety Handbook.
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