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An unconventional data exfiltration method leverages a previously undocumented covert channel to leak sensitive information from air-gapped systems. "The information emanates from the air-gapped computer over the air to a distance of 2 m and more and can be picked up by a nearby insider or spy with a mobile phone or laptop," Dr. Mordechai Guri , the head of R&D in the Cyber Security Research Center in the Ben Gurion University of the Negev in Israel and the head of Offensive-Defensive Cyber Research Lab, said in a  new paper  shared with The Hacker News. The mechanism, dubbed  COVID-bit , leverages malware planted on the machine to generate electromagnetic radiation in the 0-60 kHz frequency band that's subsequently transmitted and picked up by a stealthy receiving device in close physical proximity. This, in turn, is made possible by exploiting the dynamic power consumption of modern computers and manipulating the momentary loads on CPU cores. COVID-bit is the...

Apple on Wednesday  announced  a raft of security measures, including an Advanced Data Protection setting that enables end-to-end encrypted (E2EE) data backups in its iCloud service. The headlining feature, when turned on, is expected to secure 23 data categories using E2EE, including device and message backups, iCloud Drive, Notes, Photos, Reminders, Voice Memos, Safari Bookmarks, Siri Shortcuts, and Wallet Passes. The iPhone maker said the only major iCloud data categories that are still not protected by E2EE are Mail, Contacts, and Calendar because of the "need to interoperate with the global email, contacts, and calendar systems" that use legacy technologies. Advanced Data Protection's E2EE protections for iCloud also mean that users' personal data can only be decrypted on their trusted devices, which retain the encryption keys. "If you enable Advanced Data Protection and then lose access to your account, Apple will not have the encryption keys to help ...

Looking to up your cybersecurity game in the new year? Do not just buy electronics this vacation season, improve your cybersecurity! The end of the year is a great time to re-evaluate your cybersecurity strategy and make some important investments in protecting your personal and professional data. Cyber threats are constantly evolving and becoming more sophisticated, so it's important to stay on top of your security game. Investing in cybersecurity is not just about protecting your business from potential threats. It's also about gaining a competitive edge and earning the trust of your customers. In today's connected world, customers expect companies to prioritize their security. By investing in cybersecurity, you can show your customers that you value their data and their loyalty. One of the best ways to do this is to take advantage of year-end offers from top cybersecurity companies. Many of these companies offer special discounts on their products and services at thi...

An Internet Explorer zero-day vulnerability was actively exploited by a North Korean threat actor to target South Korean users by capitalizing on the recent  Itaewon Halloween crowd crush  to trick users into downloading malware. The discovery, reported by Google Threat Analysis Group researchers Benoît Sevens and Clément Lecigne, is the latest set of attacks perpetrated by  ScarCruft , which is also called APT37, InkySquid, Reaper, and Ricochet Chollima. "The group has historically focused their targeting on South Korean users, North Korean defectors, policy makers, journalists, and human rights activists," TAG  said  in a Thursday analysis. The new findings illustrate the threat actor's continued abuse of Internet Explorer flaws such as CVE-2020-1380 and CVE-2021-26411 to drop backdoors like  BLUELIGHT and Dolphin , the latter of which was disclosed by Slovak cybersecurity firm ESET late last month. Another key tool in its arsenal is  RokRat , ...

An Iranian advanced persistent threat (APT) actor known as  Agrius  has been attributed as behind a set of data wiper attacks aimed at diamond industries in South Africa, Israel, and Hong Kong. The wiper, referred to as Fantasy by ESET, is believed to have been delivered via a supply-chain attack targeting an Israeli software suite developer as part of a campaign that began in February 2022. Victims include HR firms, IT consulting companies, and a diamond wholesaler in Israel; a South African entity working in the diamond industry; and a jeweler based in Hong Kong. "The Fantasy wiper is built on the foundations of the previously reported Apostle wiper but does not attempt to masquerade as ransomware, as Apostle originally did," ESET researcher Adam Burgher  disclosed  in a Wednesday analysis. "Instead, it goes right to work wiping data." Apostle was  first documented  by SentinelOne in May 2021 as a wiper-turned-ransomware that was deployed in destruct...