Wi-Fi signal | Breaking Cybersecurity News | The Hacker News

A security researcher has demonstrated that sensitive data could be exfiltrated from air-gapped computers via a novel technique that leverages Wi-Fi signals as a covert channel—surprisingly, without requiring the presence of Wi-Fi hardware on the targeted systems. Dubbed " AIR-FI ," the attack hinges on deploying a specially designed malware in a compromised system that exploits "DDR SDRAM buses to generate electromagnetic emissions in the 2.4 GHz Wi-Fi bands" and transmitting information atop these frequencies that can then be intercepted and decoded by nearby Wi-Fi capable devices such as smartphones, laptops, and IoT devices before sending the data to remote servers controlled by an attacker. The findings were published today in a paper titled "AIR-FI: Generating Covert Wi-Fi Signals from Air-Gapped Computers" by Dr. Mordechai Guri , the head of R&D at Ben-Gurion University of the Negev's Cyber-Security Research Center, Israel. "The AI...

Do you know what is the latest version of Wi-Fi? It's okay if you don't know. It is — Wi-Fi is 802.11ac. I am sure many of us can't answer this question immediately because the Wi-Fi technology doesn't have a traditional format of version numbers… at least until yesterday. The Wi-Fi Alliance—the group that manages the implementation of Wi-Fi—has today announced that the next version of WiFi standard, which is 802.11ax, will use a simpler naming scheme and will be called WiFi 6. Wi-Fi 6, based on the IEEE 802.11ax standard, will offer higher data rates, increased capacity, good performance—even in dense environments (such as stadiums or public venues) and improved power efficiency, making it perfect choice for smart home and IoT uses). Of course, the updated version names of all previous Wi-Fi standards will now be: 802.11b → Wi-Fi 1 802.11a → Wi-Fi 2 802.11g → Wi-Fi 3 802.11n → Wi-Fi 4, 802.11ac (current) → Wi-Fi 5 This new straightforward approach...

Vulnerability Management (VM) has long been a cornerstone of organizational cybersecurity. Nearly as old as the discipline of cybersecurity itself, it aims to help organizations identify and address potential security issues before they become serious problems. Yet, in recent years, the limitations of this approach have become increasingly evident.  At its core, Vulnerability Management processes remain essential for identifying and addressing weaknesses. But as time marches on and attack avenues evolve, this approach is beginning to show its age. In a recent report, How to Grow Vulnerability Management into Exposure Management (Gartner, How to Grow Vulnerability Management Into Exposure Management, 8 November 2024, Mitchell Schneider Et Al.), we believe Gartner® addresses this point precisely and demonstrates how organizations can – and must – shift from a vulnerability-centric strategy to a broader Exposure Management (EM) framework. We feel it's more than a worthwhile read an...

Get ready for faster Internet because the WiFi you know today is about to change and get much, much faster. The WiFi Alliance, a self-described "worldwide network of companies that brings you Wi-Fi," has finally certified " WiGig ," an ultra-fast, short-range wireless network technology that will nearly double Wi-Fi's current top speed. As many as 180 Million devices, including routers, smartphones, laptops, tablets, and other devices, arriving by the end of next year will support WiGig or multi-gigabit Wi-Fi 802.11ad on the 60 gigahertz band, the Alliance announced . This certification program aims to encourage the production of devices and hardware that not only operate in the "less congested" 60 GHz spectrum but can also fall back to the regular Wi-Fi – 2.4 or 5 gigahertz bands – for maximum interoperability. "Wi-Fi has delighted users for more than 15 years, and WiGig now gives users even higher performance in a rich variety of appl...

Are you good at hiding your feelings? No issues, your Wi-Fi router may soon be able to tell how you feel, even if you have a good poker face. A team of researchers at MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL) have developed a device that can measure human inner emotional states using wireless signals. Dubbed EQ-Radio , the new device measures heartbeat, and breath to determine whether a person is happy, excited, sad, or angry. Using EQ-Radio, which emits and captures reflected radio frequency (RF) waves, the team bounced waves off a person's body to measure subtle changes in breathing patterns and heart rates. This data was then run through a bunch of algorithms and a machine-learning process programmed to match a person's behavior to how they acted previously, categorizing the person's emotion as one of the four emotional states: Pleasure, Joy, Anger and Sadness. The impressive part about the technique: EQ-Radio doesn't r...

It is a common problem: Home Wireless Router's reach is terrible that the WiFi network even does not extend past the front door of the room. My house also has all kinds of Wi-Fi dead zones, but can we fix it? The answer is: YES . The problem will improve with a future, longer range version of Wi-Fi that uses low power consumption than current wireless technology and specifically targets at the internet of things (IoTs). Global certification network the WiFi Alliance has finally approved a new wireless technology standard called 802.11ah, nicknamed " HaLow ." HaLow: Long Range WiFi Wi-Fi HaLow has twice the range of conventional Wi-Fi and has the ability to penetrate walls that usually create blackspots in our homes. The Wi-Fi Alliance unveiled this latest WiFi technology at the Consumer Electronics Show (CES) in Las Vegas. Although currently used 802.11 Wi-Fi standards commonly operate in frequency bandwidths between 2.4GHz and 5GHz, the n...

Forget about Superman's X-rays vision, you can now see through walls using WI-FI device only. Scientists at MIT's Computer Science and Artificial Intelligence Lab ( CSAIL ) have developed a device that uses WiFi signals to effectively see through walls and other obstacles, and identify which persons are standing behind it. Dubbed RF Capture , the new system is enhanced version of their previous methods of capturing movements across a house – technology used by mothers to see their baby's breathing and firefighters to determine if there are survivors in a burning building. How Does RF Capture Work? The working of RF Capture is actually quite simple and relatively straightforward. RF-Capture works by transmitting wireless signals that, upon hitting a person standing behind a wall, are reflected off various body parts and then back to the device for analysis to piece together the whole image of people. RF-Capture transmits radio waves that pass thro...