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At least six organizations in South Korea have been targeted by the prolific North Korea-linked Lazarus Group as part of a campaign dubbed Operation SyncHole . The activity targeted South Korea's software, IT, financial, semiconductor manufacturing, and telecommunications industries, according to a report from Kaspersky published today. The earliest evidence of compromise was first detected in November 2024. The campaign involved a "sophisticated combination of a watering hole strategy and vulnerability exploitation within South Korean software," security researchers Sojun Ryu and Vasily Berdnikov said . "A one-day vulnerability in Innorix Agent was also used for lateral movement." The attacks have been observed paving the way for variants of known Lazarus tools such as ThreatNeedle , AGAMEMNON , wAgent , SIGNBT , and COPPERHEDGE . What makes these intrusions particularly effective is the likely exploitation of a security vulnerability in Cross EX, a legi...

Cybersecurity researchers have demonstrated a proof-of-concept (PoC) rootkit dubbed Curing that leverages a Linux asynchronous I/O mechanism called io_uring to bypass traditional system call monitoring. This causes a "major blind spot in Linux runtime security tools," ARMO said. "This mechanism allows a user application to perform various actions without using system calls," the company said in a report shared with The Hacker News. "As a result, security tools relying on system call monitoring are blind' to rootkits working solely on io_uring." io_uring, first introduced in Linux kernel version 5.1 in March 2019, is a Linux kernel system call interface that employs two circular buffers called a submission queue (SQ) and a completion queue (CQ) between the kernel and an application (i.e., user space) to track the submission and completion of I/O requests in an asynchronous manner. The rootkit devised by ARMO facilitates communication between ...

The Evolving Healthcare Cybersecurity Landscape   Healthcare organizations face unprecedented cybersecurity challenges in 2025. With operational technology (OT) environments increasingly targeted and the convergence of IT and medical systems creating an expanded attack surface, traditional security approaches are proving inadequate. According to recent statistics, the healthcare sector experienced a record-breaking year for data breaches in 2024, with over 133 million patient records exposed. The average cost of a healthcare data breach has now reached $11 million, making it the most expensive industry for breaches.  What's changed dramatically is the focus of attackers. No longer content with merely extracting patient records, cybercriminals are now targeting the actual devices that deliver patient care. The stakes have never been higher, with ransomware now representing 71% of all attacks against healthcare organizations and causing an average downtime of 11 days per inc...

As many as 159 CVE identifiers have been flagged as exploited in the wild in the first quarter of 2025, up from 151 in Q4 2024. "We continue to see vulnerabilities being exploited at a fast pace with 28.3% of vulnerabilities being exploited within 1-day of their CVE disclosure," VulnCheck said in a report shared with The Hacker News. This translates to 45 security flaws that have been weaponized in real-world attacks within a day of disclosure. Fourteen other flaws have been exploited within a month, while another 45 flaws were abused within the span of a year.  The cybersecurity company said a majority of the exploited vulnerabilities have been identified in content management systems (CMSes), followed by network edge devices, operating systems, open-source software, and server software. The breakdown is as follows - Content Management Systems (CMS) (35) Network Edge Devices (29) Operating Systems (24) Open Source Software (14) Server Software (14) The leading...

The threat actors behind the Darcula phishing-as-a-service ( PhaaS ) platform have released new updates to their cybercrime suite with generative artificial intelligence (GenAI) capabilities. "This addition lowers the technical barrier for creating phishing pages, enabling less tech-savvy criminals to deploy customized scams in minutes," Netcraft said in a fresh report shared with The Hacker News. "The new AI-assisted features amplify Darcula's threat potential by simplifying the process to build tailored phishing pages with multi-language support and form generation — all without any programming knowledge." Darcula was first documented by the cybersecurity company in March 2024 as a toolkit that leveraged Apple iMessage and RCS to send smishing messages to users that trick recipients into clicking on bogus links under the guise of postal services like USPS. Earlier this year, the operators of Darcula PhaaS began testing a major update that enabled cust...

A critical security flaw has been disclosed in the Commvault Command Center that could allow arbitrary code execution on affected installations. The vulnerability, tracked as CVE-2025-34028 , carries a CVSS score of 9.0 out of a maximum of 10.0. "A critical security vulnerability has been identified in the Command Center installation, allowing remote attackers to execute arbitrary code without authentication," Commvault said in an advisory published on April 17, 2025. "This vulnerability could lead to a complete compromise of the Command Center environment." It impacts the 11.38 Innovation Release, from versions 11.38.0 through 11.38.19, and has been resolved in the following versions - 11.38.20 11.38.25 watchTowr Labs researcher Sonny Macdonald, who has been credited with discovering and reporting the flaw on April 7, 2025, said in a report shared with The Hacker News that it could be exploited to achieve pre-authenticated remote code execution. Specif...

The problem is simple: all breaches start with initial access, and initial access comes down to two primary attack vectors – credentials and devices. This is not news; every report you can find on the threat landscape depicts the same picture.  The solution is more complex. For this article, we'll focus on the device threat vector. The risk they pose is significant, which is why device management tools like Mobile Device Management (MDM) and Endpoint Detection and Response (EDR) are essential components of an organization's security infrastructure. However, relying solely on these tools to manage device risk actually creates a false sense of security. Instead of the blunt tools of device management, organizations are looking for solutions that deliver device trust . Device trust provides a comprehensive, risk-based approach to device security enforcement, closing the large gaps left behind by traditional device management solutions. Here are 5 of those limitations and how to ov...

WhatsApp has introduced an extra layer of privacy called Advanced Chat Privacy that allows users to block participants from sharing the contents of a conversation in traditional chats and groups. "This new setting available in both chats and groups helps prevent others from taking content outside of WhatsApp for when you may want extra privacy," WhatsApp said in a statement. The optional feature, when enabled, prevents others from exporting chats, auto-downloading media to their phone, and using messages for artificial intelligence (AI) features. However, it's worth noting users can still take individual screenshots, or manually download the media. The popular messaging service said the feature is "best used" when engaging in sensitive conversations with groups where it's possible that users may not know everyone closely. The feature, WhatsApp said, is rolling to all users who are on the latest version of the application. The disclosure comes as the ...

Multiple threat activity clusters with ties to North Korea (aka Democratic People's Republic of Korea or DPRK) have been linked to attacks targeting organizations and individuals in the Web3 and cryptocurrency space. "The focus on Web3 and cryptocurrency appears to be primarily financially motivated due to the heavy sanctions that have been placed on North Korea," Google-owned Mandiant said in its M-Trends report for 2025 shared with The Hacker News. "These activities aim to generate financial gains, reportedly funding North Korea's weapons of mass destruction (WMD) program and other strategic assets." The cybersecurity firm said DPRK-nexus threat actors have developed custom tools written in a variety of languages such as Golang, C++, and Rust, and are capable of infecting Windows, Linux, and macOS operating systems. At least three threat activity clusters it tracks as UNC1069, UNC4899, and UNC5342 have been found to target members of the cryptocurren...

The Iran-nexus threat actor known as UNC2428 has been observed delivering a backdoor known as MURKYTOUR as part of a job-themed social engineering campaign aimed at Israel in October 2024. Google-owned Mandiant described UNC2428 as a threat actor aligned with Iran that engages in cyber espionage-related operations. The intrusion set is said to have distributed the malware through a "complex chain of deception techniques." "UNC2428's social engineering campaign targeted individuals while posing as a recruitment opportunity from Israeli defense contractor, Rafael," the company said in its annual M-Trends report for 2025. Individuals who expressed interest were redirected to a site that impersonated Rafael, from where they were asked to download a tool to assist with applying for the job. The tool ("RafaelConnect.exe") was an installer dubbed LONEFLEET that, once launched, presented a graphical user interface (GUI) to the victim in order to enter th...

Cybersecurity researchers have revealed that Russian military personnel are the target of a new malicious campaign that distributes Android spyware under the guise of the Alpine Quest mapping software. "The attackers hide this trojan inside modified Alpine Quest mapping software and distribute it in various ways, including through one of the Russian Android app catalogs," Doctor Web said in an analysis. The trojan has been found embedded in older versions of the software and propagated as a freely available variant of Alpine Quest Pro , a paid offering that removes advertising and analytics features. The Russian cybersecurity vendor said it also observed the malware, dubbed Android.Spy.1292.origin, being distributed in the form of an APK file via a fake Telegram channel. While the threat actors initially provided a link for downloading the app in one of the Russian app catalogs through the Telegram channel, the trojanized version was later distributed directly as an A...