airgap network | Breaking Cybersecurity News | The Hacker News

A cybersecurity researcher at ESET today published an analysis of a new piece of malware, a sample of which they spotted on the Virustotal malware scanning engine and believe the hacker behind it is likely interested in some high-value computers protected behind air‑gapped networks. Dubbed ' Ramsay ,' the malware is still under development with two more variants (v2.a and v2.b) spotted in the wild and doesn't yet appear to be a complex attacking framework based upon the details researcher shared. However, before reading anything further, it's important to note that the malware itself doesn't leverage any extraordinary or advanced technique that could let attackers jump air-gapped networks to infiltrate or exfiltrate data from the targeted computers. According to ESET researcher Ignacio Sanmillan, Ramsay infiltrates targeted computers through malicious documents, potentially sent via a spear-phishing email or dropped using a USB drive, and then exploits an ol

It may sound creepy and unreal, but hackers can also exfiltrate sensitive data from your computer by simply changing the brightness of the screen, new cybersecurity research shared with The Hacker News revealed. In recent years, several cybersecurity researchers demonstrated innovative ways to covertly exfiltrate data from a physically isolated air-gapped computer that can't connect wirelessly or physically with other computers or network devices. These clever ideas rely on exploiting little-noticed emissions of a computer's components, such as light, sound , heat , radio frequencies , or ultrasonic waves , and even using the current fluctuations in the power lines. For instance, potential attackers could sabotage supply chains to infect an air-gapped computer, but they can't always count on an insider to unknowingly carry a USB with the data back out of a targeted facility. When it comes to high-value targets, these unusual techniques, which may sound theoretica

Dr. Mordechai Guri, the head of R&D team at Israel's Ben Gurion University, who previously demonstrated various methods to steal data from an air-gapped computer, has now published new research named " BeatCoin ." BeatCoin is not a new hacking technique; instead, it's an experiment wherein the researcher demonstrates how all previously discovered out-of-band communication methods can be used to steal private keys for a cryptocurrency wallet installed on cold storage, preferably an air-gapped computer or Raspberry Pi. For those unaware, keeping your cryptocurrency protected in a wallet on a device which is entirely offline is called cold storage. Since online digital wallets carry different security risks, some people prefer keeping their private keys offline. Air-gapped computers are those that are isolated from the Internet, local networks, Bluetooth and therefore, are believed to be the most secure devices and are difficult to infiltrate or exfiltrate.

There's a natural human desire to avoid threatening scenarios. The irony, of course, is if you hope to attain any semblance of security, you've got to remain prepared to confront those very same threats. As a decision-maker for your organization, you know this well. But no matter how many experts or trusted cybersecurity tools your organization has a standing guard, you're only as secure as your weakest link. There's still one group that can inadvertently open the gates to unwanted threat actors—your own people. Security must be second nature for your first line of defense For your organization to thrive, you need capable employees. After all, they're your source for great ideas, innovation, and ingenuity. However, they're also human. And humans are fallible. Hackers understand no one is perfect, and that's precisely what they seek to exploit. This is why your people must become your first line of defense against cyber threats. But to do so, they need to learn how to defend thems

Do you think it is possible to extract data from a computer using its power cables? If no, then you should definitely read about this technique. Researchers from Israel's Ben Gurion University of the Negev—who majorly focus on finding clever ways to exfiltrate data from an isolated or air-gapped computer—have now shown how fluctuations in the current flow "propagated through the power lines" could be used to covertly steal highly sensitive data. Sound something like a James Bond movie? Well, the same group of researchers has previously demonstrated various out-of-band communication methods to steal data from a compromised air-gapped computer via light , sound , heat , electromagnetic , magnetic and ultrasonic waves . Air-gapped computers are those that are isolated from the Internet and local networks and therefore, are believed to be the most secure devices that are difficult to infiltrate or exfiltrate data. "As a part of the targeted attack, the adve

A team of security researchers—which majorly focuses on finding clever ways to get into air-gapped computers by exploiting little-noticed emissions of a computer's components like light, sound and heat —have published another research showcasing that they can steal data not only from an air gap computer but also from a computer inside a Faraday cage. Air-gapped computers are those that are isolated from the Internet and local networks and so, are believed to be the most secure devices that are difficult to infiltrate. Whereas, Faraday cages are metallic enclosures that even blocks all electromagnetic signals, such as Wi-Fi, Bluetooth, cellular and other wireless communications, making any device kept inside the cage, even more, isolate from outside networks. However, Cybersecurity Research Center at Israel's Ben Gurion University, directed by 38-year-old Mordechai Guri, has developed two techniques that helped them exfiltrate data from computers placed inside a Faraday

Air-gapped computers that are isolated from the Internet and physically separated from local networks are believed to be the most secure computers which are difficult to infiltrate. However, these networks have been a regular target in recent years for researchers, who have been trying to demonstrate every possible attack scenarios that could compromise the security of such isolated networks. Security researchers from Ben-Gurion University in Israel have previously demonstrated several ways to extract sensitive information from air-gapped computers. Now, the same University researchers have discovered another way to steal confidential information from air-gapped computers – this time with the help of infrared-equipped CCTV cameras that are used for night vision. Researchers have developed a new attack scenario, dubbed aIR-Jumper, which includes an infected air-gapped computer (from which data needs to be stolen) and an infected CCTV network (that has at least one CCTV insta