RollJam, a $30 device to unlock the majority of car doors (2024)

FAQs

What is a RollJam device? ›

The rolljam attack works by recording and blocking the radio signal from the key fob. Because the signal was blocked, the car doesn't unlock and the owner will naturally try again. That creates a second signal that is also recorded and blocked, but this time the attacker replays the first code to unlock the door.

The researchers presented RollJam, a cheap device composed of a microcontroller and a battery. RollJam is capable to unlock any car or garage door, it is easy to use and costs under $30.

A Flipper Zero is a portable scanning device, similar in size to a key fob. Police say the devices are capable of emulating, copying and transferring “a variety of different types of frequency and code to open cars, garage doors and safes”.

The RollJam hardware currently consists of a Teensy 3.1 microcontroller and two CC1101 433 MHz RF transceiver modules. It works by recording the wireless key signal, but at the same time jamming it so that the car does not receive the signal.

Hacking into a garage door opener secured by rolling code technology is a difficult task. There are millions of possible combinations, and one would need a very expensive and advanced technology to pull it off.

The Ghost has no key-fobs or LED indications to give away its location. The Ghost uses the buttons in your vehicle such as those on the steering wheel, door panels or centre console, to allow you to make a unique, changeable, disarm sequence (like a PIN code) that must first be entered before you can drive your car.

CAR CONNECT - MY CAR KEYS is a mobile app that allows you to track, monitor, and unlock your car from your phone. With Car Connect, you can see fuel reserves, engine oil level, tire pressure, and more - all with a tap.

A slim jim (more technically known as a lockout tool) is a thin strip of metal (usually spring steel) roughly 60 centimetres (24 in) long and about 2–4 centimetres (0.79–1.57 in) wide originally marketed under that name by HPC Inc., a manufacturer and supplier of specialty locksmithing tools.

But, like contactless debit and credit cards, keyless technology can sometimes be vulnerable to illegal cloning. This is when thieves trick your car into believing the digital key is being used, when in actual fact, they've just created a clone.

Protect your car with our signal blocking faraday box, which can prevent thieves from using key fob skimming tools to replicate your key fob encrypted signal code to gain access to your vehicle and keyless entry system. Simple way to keep your car safe, give peace of mind when you sleep at night.

What are rolling codes car keys? ›

A rolling code (or sometimes called a hopping code) is used in keyless entry systems to prevent a simple form of replay attack, where an eavesdropper records the transmission and replays it at a later time to cause the receiver to 'unlock'.

If the keys lack a signal-blocker shield (called an RFID blocker), thieves can use a transponder device, which you can pick up online on the cheap. That electronic device can capture the keyless entry code as it's sent from the fob to the car.

The device transmits a jamming signal to block the vehicle's reception of rolling code signals from the owner's fob, while recording these signals from both of his two attempts needed to unlock the vehicle.

The Relay Attack, a two-person attack, is when a thief walks up to the victim's home with a piece of equipment that captures the signal from the key fob and then transmits the signal from a car key fob.