The Hacker News Logo
Subscribe to Newsletter

The Hacker News — Cyber Security and Hacking News Website: radio signals

Here's How Hacker Activated All Dallas Emergency Sirens On Friday Night

Here's How Hacker Activated All Dallas Emergency Sirens On Friday Night

April 13, 2017Mohit Kumar
Last weekend when outdoor emergency sirens in Dallas cried loudly for over 90 minutes, many researchers concluded that some hackers hijacked the alarm system by exploiting an issue in a vulnerable computer network. But it turns out that the hackers did not breach Dallas' emergency services computer systems to trigger the city's outdoor sirens for tornado warnings and other emergencies, rather they did it entirely on radio. According to a statement issued on Monday, Dallas City Manager T.C. Broadnax clarified the cause of the last Friday's chaos, saying the "hack" used a radio signal that spoofed the system used to control the siren network centrally. "I don't want someone to understand how it was done so that they could try to do it again," Broadnax said without going much into details. "It was not a system software issue; it was a radio issue." First installed in 2007, the Dallas outdoor emergency warning system powers 156 sire
First Ever Anti-Drone Weapon that Shoots Down UAVs with Radio Waves

First Ever Anti-Drone Weapon that Shoots Down UAVs with Radio Waves

October 15, 2015Swati Khandelwal
While the US military continues to build more advanced unmanned aerial vehicles ( UAVs ), popularly known as Drones , the US company Battelle has developed a shoulder-mounted rifle to deal with unwanted drones flying around. Dubbed DroneDefender , the revolutionary weapon specifically designed to target and knock drones out of the sky at a range of just 400 meters, without totally destroying them. The Battelle DroneDefender utilizes radio waves to neutralize in-flight Drones and force them to land or hover or return to its point of origin. Video Demonstration You can watch the video given below to know how the DroneDefender works. It shows how the weapon is able to stop a drone in its tracks and cause it to land. The DroneDefender weighs less than 5 kilograms and can disable a hostile drone within a 400-meter radius. How does DroneDefender Work? As soon as the trigger is pulled, DroneDefender emits radio pulses that interrupt the communications system
Hackers Can Use Radio-waves to Control Your Smartphone From 16 Feet Away

Hackers Can Use Radio-waves to Control Your Smartphone From 16 Feet Away

October 14, 2015Swati Khandelwal
What if your phone starts making calls, sending text messages and browsing Internet itself without even asking you? No imaginations, because hackers can make this possible using your phone's personal assistant Siri or Google Now. Security researchers have discovered a new hack that could allow hackers to make calls, send texts, browser a malware site, and do many more activities using your iOS or Android devices' personal assistant Siri or Google Now — without even speaking a single word. A Group of researchers from French government agency ANSSI have discovered that a hacker can control Apple's Siri and Android's Google Now by remotely and silently transmitting radio commands from as far as 16 feet away... ...only if it also has a pair of headphones plugged into its jack. How does the Hack Work? It is very interesting and a mind-blowing technique. The Hack utilizes: An iPhone or Android handset with headphones plugged in A radio tra
This Antenna Can Remotely Steal Data From Devices using Sound Waves

This Antenna Can Remotely Steal Data From Devices using Sound Waves

August 06, 2015Swati Khandelwal
Remember the previously demonstrated technique to Hack into air-gapped computers using Heat waves? What if the same was possible to hack computers to steal data using Sound waves ? Imagine, If a remote hacker could steal classified information from a targeted computer without having to physically and Internet access to it. A team of security researchers has demonstrated exactly the same by developing a new hacking technique called Funtenna that uses sound and radio waves to siphon data from computers even without Internet access. According to a lead researcher Ang Cui of Red Balloon Security, the Funtenna radio signal hack has the potential to turn Internet-connected devices (printer, washing machine and air conditioner) – popularly known as the Internet of Things – into bugs that can transmit data out of a network using sound waves that can not be heard by a human ear. How Funtenna Works? The attacker only needs to install malware on a target's devic
How to Hack into Computers using Pita Bread and A Radio

How to Hack into Computers using Pita Bread and A Radio

June 23, 2015Swati Khandelwal
There's a new and clever way of hacking into computers, and it can be done cheaply – Using just a radio receiver and a piece of pita bread . Yeah, you heard it right. Security researchers at Tel Aviv University have demonstrated how to extract secret decryption keys from computers by capturing radio emissions of laptop computers . Capturing the radio signals to steal data from a computer system is nothing new. But the process required expensive, bulky lab equipment to accomplish. However, the Israeli-based researchers team managed to do it with cheap consumer-grade components as well as small enough to hide inside a piece of pita bread. Using cheap equipment, the team of researchers, including Daniel Genkin, Lev Pachmanov, Itamar Pipman and Eran Tromer , was able to capture keystrokes, applications running on a computer system, and encryption keys. How the method works? The idea is simple, as different computer operations, such as playing some game o
Exclusive Deals

Get Daily News Updates By Email

Join over 350,000 information security professionals — Get the best of our cyber security coverage delivered to your inbox every morning.