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Microsoft on Sunday released security patches for an actively exploited security flaw in SharePoint and also disclosed details of another vulnerability that it said has been addressed with "more robust protections." The tech giant acknowledged it's "aware of active attacks targeting on-premises SharePoint Server customers by exploiting vulnerabilities partially addressed by the July Security Update." CVE-2025-53770 (CVSS score: 9.8), as the exploited vulnerability is tracked, concerns a case of remote code execution that arises due to the deserialization of untrusted data in on-premise versions of Microsoft SharePoint Server. The newly disclosed shortcoming is a spoofing flaw in SharePoint ( CVE-2025-53771 , CVSS score: 7.1). Viettel Cyber Security and an anonymous researcher has been credited with discovering and reporting the bug. "Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint...

Misconfigured Docker instances are the target of a campaign that employs the Tor anonymity network to stealthily mine cryptocurrency in susceptible environments. "Attackers are exploiting misconfigured Docker APIs to gain access to containerized environments, then using Tor to mask their activities while deploying crypto miners," Trend Micro researchers Sunil Bharti and Shubham Singh said in an analysis published last week. In using Tor, the idea is to anonymize their origins during the installation of the miner on compromised systems. The attacks, per the cybersecurity company, commence with a request from the IP address 198.199.72[.]27 to obtain a list of all containers on the machine. If no containers are present, the attacker proceeds to create a new one based on the "alpine" Docker image and mounts the "/hostroot" directory – i.e., the root directory ("/") of the physical or virtual host machine – as a volume inside it. This behavior p...

An emerging ransomware strain has been discovered incorporating capabilities to encrypt files as well as permanently erase them, a development that has been described as a "rare dual-threat." "The ransomware features a 'wipe mode,' which permanently erases files, rendering recovery impossible even if the ransom is paid," Trend Micro researchers Maristel Policarpio, Sarah Pearl Camiling, and Sophia Nilette Robles said in a report published last week. The ransomware-as-a-service (RaaS) operation in question is named Anubis, which became active in December 2024, claiming victims across healthcare, hospitality, and construction sectors in Australia, Canada, Peru, and the U.S. Analysis of early, trial samples of the ransomware suggests that the developers initially named it Sphinx, before tweaking the brand name in the final version. It's worth noting that the e-crime crew has no ties to an Android banking trojan and a Python-based backdoor of the s...

Breaking Out of the Security Mosh Pit When Jason Elrod, CISO of MultiCare Health System, describes legacy healthcare IT environments, he doesn't mince words: "Healthcare loves to walk backwards into the future. And this is how we got here, because there are a lot of things that we could have prepared for that we didn't, because we were so concentrated on where we were." This chaotic approach has characterized healthcare IT for decades. In a sector where lives depend on technology working flawlessly 24/7/365, security teams have traditionally functioned as gatekeepers—the "Department of No"—focused on protection at the expense of innovation and care delivery. But as healthcare continues its digital transformation journey, this approach is no longer sustainable. With 14 hospitals, hundreds of urgent care clinics, and nearly 30,000 employees serving millions of patients, MultiCare needed a different path forward – one that didn't sacrifice innovation for safety. That...

Cybersecurity researchers have revealed that RansomHub 's online infrastructure has "inexplicably" gone offline as of April 1, 2025, prompting concerns among affiliates of the ransomware-as-a-service (RaaS) operation. Singaporean cybersecurity company Group-IB said that this may have caused affiliates to migrate to Qilin, given that "disclosures on its DLS [data leak site] have doubled since February."  RansomHub, which first emerged in February 2024, is estimated to have stolen data from over 200 victims. It replaced two high-profile RaaS groups, LockBit and BlackCat, to become a frontrunner, courting their affiliates, including Scattered Spider and Evil Corp , with lucrative payment splits. "Following a possible acquisition of the web application and ransomware source code of Knight (formerly Cyclops), RansomHub quickly rose in the ransomware scene, thanks to the dynamic features of its multi-platform encryptor and an aggressive, affiliate-friendly ...

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...

Blockchain is best known for its use in cryptocurrencies like Bitcoin, but it also holds significant applications for online authentication. As businesses in varying sectors increasingly embrace blockchain-based security tools, could the technology one day replace passwords? How blockchain works  Blockchain is a secure way to maintain, encrypt, and exchange digital records of transactions. Its security benefits stem from its decentralized nature: this distributed ledger can be accessed by participants across various nodes , and is unalterable. All users retain control as a group, meaning no single person can change the ledger. How could this provide security benefits? One advantage is the ability to create a 'self-sovereign ID' that alters the way that a user identifies themselves online. Essentially, it creates a private ID for a user that they control, rather than relying on a centralized institution : they can logon to a particular website or service using their identity on...

Introduction Cyber threats targeting supply chains have become a growing concern for businesses across industries. As companies continue to expand their reliance on third-party vendors, cloud-based services, and global logistics networks, cybercriminals are exploiting vulnerabilities within these interconnected systems to launch attacks. By first infiltrating a third-party vendor with undetected security gaps, attackers can establish a foothold, leveraging these weaknesses to penetrate the primary business partners' network. From there, they move laterally through critical systems, ultimately gaining access to sensitive data, financial assets, intellectual property, or even operational controls. Recent high-profile breaches like the 2024 ransomware attack that hit Change Healthcare, one of the world's largest health payment processing companies, demonstrate how attackers disrupted supply chain operations stealing up to 6TB of millions of patients' protected health information (PHI)....

Cybersecurity researchers have discovered a new, sophisticated remote access trojan called ResolverRAT that has been observed in attacks targeting healthcare and pharmaceutical sectors. "The threat actor leverages fear-based lures delivered via phishing emails, designed to pressure recipients into clicking a malicious link," Morphisec Labs researcher Nadav Lorber said in a report shared with The Hacker News. "Once accessed, the link directs the user to download and open a file that triggers the ResolverRAT execution chain." The activity, observed as recently as March 10, 2025, shares infrastructure and delivery mechanism overlap with phishing campaigns that have distributed information stealer malware such as Lumma and Rhadamanthys, as documented by Cisco Talos and Check Point last year. A notable aspect of the campaign is the use of localized phishing lures, with the emails crafted in the languages predominantly spoken in the targeted countries. This includ...

Unpatched TP-Link Archer routers have become the target of a new botnet campaign dubbed Ballista, according to new findings from the Cato CTRL team. "The botnet exploits a remote code execution (RCE) vulnerability in TP-Link Archer routers (CVE-2023-1389) to spread itself automatically over the Internet," security researchers Ofek Vardi and Matan Mittelman said in a technical report shared with The Hacker News. CVE-2023-1389 is a high-severity security flaw impacting TP-Link Archer AX-21 routers that could lead to command injection, which could then pave the way for remote code execution. The earliest evidence of active exploitation of the flaw dates back to April 2023, with unidentified threat actors using it to drop Mirai botnet malware. Since then, it has also been abused to propagate other malware families like Condi and AndroxGh0st . Cato CTRL said it detected the Ballista campaign on January 10, 2025. The most recent exploitation attempt was recorded on Februa...