Latest cybersecurity reporting from selected sources.

Eset Links Group's Growth to Integrated Endpoint-Killing ToolsEset researchers say the rapidly growing Gentlemen ransomware operation differentiates itself by supplying affiliates with a standardized EDR-killer suite that disables security tools, quickly incorporates newly disclosed vulnerable drivers and helps scale attacks across multiple regions worldwide.

AWS Researchers Find an Interlock Server Laden With ToolsRansomware hackers exploited a flaw with a maximum vulnerability score in Cisco firewall management software weeks before the networking giant disclosed the vulnerability in early March. The group has focused extensively on critical infrastructure sectors in North America and Europe.

Cybersecurity researchers have disclosed details of a suspected artificial intelligence (AI)-generated malware codenamed Slopoly put to use by a financially motivated threat actor named Hive0163

Cybersecurity researchers have disclosed details of an emergent ransomware family dubbed Reynolds that comes embedded with a built-in bring your own vulnerable driver (BYOVD) component for defense evasion purposes within the ransomware payload itself

Researchers discovered a newly disclosed vulnerable driver embedded in Black Basta's ransomware, illustrating the increasing popularity of the defense-evasion technique.

Also, CIRO Phishing Breach, Ingram Micro Ransomware and CVE SurgeThis week, DOGE posted sensitive data on an outside server. A phishing attack affected 750,000 Canadians. A hacktivism warning from the U.K. NCSC. An Ingram Micro breach. CVEs surged in 2025. SK Telecom challenged a fine. Researchers disclosed Chainlit flaws. North Korean hackers abused VS Code.

Cybersecurity researchers have disclosed details of a new ransomware family called Osiris that targeted a major food service franchisee operator in Southeast Asia in November 2025

Cybersecurity researchers have discovered a new ransomware strain dubbed HybridPetya that resembles the notorious Petya/NotPetya malware, while also incorporating the ability to bypass the Secure Boot mechanism in Unified Extensible Firmware Interface (UEFI) systems using a now-patched vulnerability disclosed earlier this year

Also, Researchers Exploit Tesla Wall Connector Via Charging CableThis week: Chinese Salt Typhoon hackers hit Viasat, researchers hacked a Tesla charger, Sitecore CMS flaws, Krispy Kreme disclosed hacking damage, Archetyp Market taken down. Episource disclosed a ransomware hack and Spain ruled out cyberattack for the April Iberian blackout.

Security researchers have disclosed almost a dozen security flaws impacting the GE HealthCare Vivid Ultrasound product family that could be exploited by malicious actors to tamper with patient data and even install ransomware under certain circumstances

More than 1,000 servers remain unpatched and vulnerable Security researchers are increasingly seeing active exploit attempts using the latest vulnerabilities in JetBrains' TeamCity that in some cases are leading to ransomware deployment.…

South Korean researchers have publicly disclosed an encryption flaw in the Rhysida ransomware encryptor, allowing the creation of a Windows decryptor to recover files for free. [...]

Cybersecurity researchers are warning of suspected exploitation of a recently disclosed critical security flaw in the Apache ActiveMQ open-source message broker service that could result in remote code execution

Kaspersky security researchers have disclosed details of a brand-new ransomware family written in Rust, making it the third strain after BlackCat and Hive to use the programming language

Cybersecurity researchers have disclosed a new ransomware strain called GoodWill that compels victims into donating for social causes and provide financial assistance to people in need

Cybersecurity researchers have disclosed details of the latest version of the Chaos ransomware line, dubbed Yashma

Cybersecurity researchers have disclosed a new variant of the AvosLocker ransomware that disables antivirus solutions to evade detection after breaching target networks by taking advantage of unpatched security flaws.  "This is the first sample we observed from the U.S. with the capability to disable a defense solution using a legitimate Avast Anti-Rootkit Driver file (asWarPot.sys)," Trend

Researchers have disclosed what they say is the first-ever Python-based ransomware strain specifically designed to target exposed Jupyter notebooks, a web-based interactive computing platform that allows editing and running programs via a browser