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The Dutch National Cyber Security Centre (NCSC-NL) has warned of cyber attacks exploiting a recently disclosed critical security flaw impacting Citrix NetScaler ADC products to breach organizations in the country. The NCSC-NL said it discovered the exploitation of CVE-2025-6543 targeting several critical organizations within the Netherlands, and that investigations are ongoing to determine the

Cybersecurity researchers have discovered a fresh set of security issues in the Terrestrial Trunked Radio (TETRA) communications protocol, including in its proprietary end-to-end encryption (E2EE) mechanism that exposes the system to replay and brute-force attacks, and even decrypt encrypted traffic. Details of the vulnerabilities – dubbed 2TETRA:2BURST – were presented at the Black Hat USA

Malicious actors have been observed exploiting a now-patched critical security flaw impacting Erlang/Open Telecom Platform (OTP) SSH as early as beginning of May 2025, with about 70% of detections originating from firewalls protecting operational technology (OT) networks. The vulnerability in question is CVE-2025-32433 (CVSS score: 10.0), a missing authentication issue that could be abused by an

This week, cyber attackers are moving quickly, and businesses need to stay alert. They’re finding new weaknesses in popular software and coming up with clever ways to get around security. Even one unpatched flaw could let attackers in, leading to data theft or even taking control of your systems. The clock is ticking—if defenses aren’t updated regularly, it could lead to serious damage. The

The Evolution of Exposure Management Most security teams have a good sense of what’s critical in their environment. What’s harder to pin down is what’s business-critical. These are the assets that support the processes the business can’t function without. They’re not always the loudest or most exposed. They’re the ones tied to revenue, operations, and delivery. If one goes down, it’s more than a

The maintainers of the WinRAR file archiving utility have released an update to address an actively exploited zero-day vulnerability. Tracked as CVE-2025-8088 (CVSS score: 8.8), the issue has been described as a case of path traversal affecting the Windows version of the tool that could be exploited to obtain arbitrary code execution by crafting malicious archive files. "When extracting a file,

A new documentary series about cybercrime airing next month on HBO Max features interviews with Yours Truly. The four-part series follows the exploits of Julius Kivimäki, a prolific Finnish hacker recently convicted of leaking tens of thousands of patient records from an online psychotherapy practice while attempting to extort the clinic and its patients. The documentary, “Most Wanted: Teen Hacker,” explores the 27-year-old Kivimäki’s lengthy and increasingly destructive career, one that was marked by cyber attacks designed to result in real-world physical impacts on their targets. By the age of 14, Kivimäki had fallen in with a group of criminal hackers who were mass-compromising websites and milking them for customer payment card data. Kivimäki and his friends enjoyed harassing and terrorizing others by “swatting” their homes — calling in fake…