Discover the “RollJam” – a tiny hijacker device costing only $30 – which is said to allow its user unrestricted access to any automobile or garage via stolen electronic codes.


Car break-ins are not a mystery anymore. Using a car alarm system may bring more difficulties than benefits. When you are locking your vehicle with the trinket, the vehicle alarm system  receives a special code. That code grabber acts as a passive receiver: when you send such a signals to a car alarm, the receiver code grabber reads that transmission and gets the code. Using a “code grabber” device has been a common practice among thieves for years. “Code grabber” simply catches and replays wireless codes for cars and garage doors. Meanwhile both industries have responded by moving the wireless signals their key fobs use to a system of rolling codes, which means that key code changes with every use any code is rejected if it’s used a second time.
What RollJam does?

How Rolljam is any different from any other hack device? The system it uses is very clever. The device contains two radios. The first blocks the airwaves to prevent the lock from receiving the rolling code sent by the key. Since user can`t unlock the car or garage door, he or she definitely will press the lock or unlock button again. Once RollJam has collected the following rolling code, it uses the second radio to broadcast the earlier rolling code to the lock. After that, RollJam device saves the latter rolling code. Because the code has never been used  by the lock, it remains valid. By repeating  it later—say, after vehicle is locked  and owner walked away—RollJam is able to unlock the car or garage. Kamkar successfully tested the proof-of-concept device on Nissan, Cadillac, Ford, Toyota, Lotus, Volkswagen, and Chrysler vehicles, as well as Cobra and Viper alarm systems and Genie and Liftmaster garage door openers. Results are not optimistic, as  millions of vehicles and garage doors may be vulnerable.
Stay alert while opening you car or garage door. It might take a long time for car companies to update cars, so alarming system can guard against car hijacking technologies as RollJam.
Shanghai Metal Corporation is a manufacturer and exporter of best quality steel and other metal products and always pays attention to its clients needs. 
You would like to know more about our company? Please visit our website http://www.shanghaimetal.com/ and you can follow us Twitter, Facebook, LinkedIn, and Instagram. Feel free to download our new mobile application by scanning the QR code below.



Published by

Shanghai Metal Corporation

As an integrated global manufacturer, supplier of metal related products and reliable services we dedicate this blog to manifest our interests on different topics that would surely brighten your mind everyday. Each article is suited for every types of reader because we value simplicity as the key to transmit messages. Follow us and stay updated ~! Visit our main website to learn more about us : http://www.shanghaimetal.com/ Our address : 20th Floor Yuan Mansion, 738 Dongfang Road, Shanghai, China 200122 Email : shanghaimetalcorp@gmail.com Skype : shanghaimetal Telephone : +86 21 6875 6127 Monday - Friday : 9am - 5pm Saturday & Sunday : Available by appointment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s