Hacker Demonstrates Consumer Devices Can Disable All Home Security Systems Instantly

What was said

"This device can cause a serious problem in your life, especially with the video cameras and alarms and phones. If I press that button, it's going to shut down every single cell phone in this entire building, 70 meters. Your wireless cameras are not going to work, your Bluetooth microphones, your everything. You can't call 911. The alarm system that likely has a cellular connection can't contact anybody."

Montgomery demonstrated a commercially available signal jammer that disables all wireless cameras, alarms, cell phones, GPS, Wi-Fi and Bluetooth within 70 meters, making cloud-based home security systems completely useless during a break-in. The devices are illegal to use but not to own, and are primarily sold from China. He revealed criminals can capture garage door signals from 200 feet away and gain permanent access, recommending homeowners deadbolt doors connecting garages to homes and use only wired security cameras.