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39C3: CCC-Hacker fordern Bundesdatensicherungsspiele gegen Ransomware-Albträume
Vom Cyberdome zu „AI Slop“: Experten analysieren den Status quo der IT-Sicherheit und enthüllen eine nahe Zukunft, in der Backups Leistungssport werden dürften.
ESET Warns AI-driven Malware Attack and Rapidly Growing Ransomware Economy
The cybersecurity landscape has reached a critical turning point as artificial intelligence moves from theoretical threat to operational reality. In their H2 2025 Threat Report, ESET researchers have documented a disturb
US cybersecurity experts plead guilty to BlackCat ransomware attacks
Two former employees of cybersecurity incident response companies Sygnia and DigitalMint have pleaded guilty to targeting U.S. companies in BlackCat (ALPHV) ransomware attacks in 2023. [...]
Romania’s Oltenia Energy Complex suffers major ransomware attack
A ransomware attack hit Romania’s Oltenia Energy Complex on December 26, knocking out IT systems at the country’s largest coal power producer. A ransomware attack disrupted Oltenia Energy Complex, Romania’s largest coal-
Romanian energy provider hit by Gentlemen ransomware attack
A ransomware attack hit Oltenia Energy Complex (Complexul Energetic Oltenia), Romania's largest coal-based energy producer, on the second day of Christmas, taking down its IT infrastructure. [...]
Ransomware Attack on Romanian Waters Authority – 1,000+ IT Systems Compromised
Romania’s National Administration “Apele Române” (Romanian Waters) disclosed a severe ransomware attack on December 20, 2025. That compromised approximately 1,000 IT systems across the agency and 10 of its 11 regional wa
Interpol Taken Down 6 Ransomware Variants and Arrested 500+ Suspects
Law enforcement agencies across 19 African nations have achieved a landmark victory against cybercrime. Arresting 574 suspects and dismantling six ransomware variants during Operation Sentinel, a month-long coordinated c
HardBit 4.0 Ransomware Actors Attack Open RDP and SMB Services to Persist Access
HardBit ransomware continues to evolve as a serious threat to organizations worldwide. The latest version, HardBit 4.0, emerged as an upgraded variant of a strain that has been active since 2022, bringing with it more ad
INTERPOL Arrests 574 in Africa; Ukrainian Ransomware Affiliate Pleads Guilty
A law enforcement operation coordinated by INTERPOL has led to the recovery of $3 million and the arrest of 574 suspects by authorities from 19 countries, amidst a continued crackdown on cybercrime networks in Africa. Th
574 Arrested, $3 Million Seized in Crackdown on African Cybercrime Rings
Authorities in Senegal, Ghana, Benin, and Cameroon dismantled BEC, ransomware, and other cyber-fraud networks. The post 574 Arrested, $3 Million Seized in Crackdown on African Cybercrime Rings appeared first on SecurityW
3.5 Million Affected by University of Phoenix Data Breach
The University of Phoenix is one of the many victims of the recent Oracle EBS hacking campaign attributed to the Cl0p ransomware group. The post 3.5 Million Affected by University of Phoenix Data Breach appeared first on
Romanian Waters confirms cyberattack, critical water operations unaffected
Romania’s national water management authority, Romanian Waters, was hit by a ransomware attack over the weekend. Romanian Waters (Administrația Națională Apele Române), the country’s water management authority, suffered
Interpol-led action decrypts 6 ransomware strains, arrests hundreds
An Interpol-coordinated initiative called Operation Sentinel led to the arrest of 574 individuals and the recovery of $3 million linked to business email compromise, extortion, and ransomware incidents. [...]
Romanian water authority hit by ransomware attack over weekend
Romanian Waters (Administrația Națională Apele Române), the country's water management authority, was hit by a ransomware attack over the weekend. [...]
Ukrainian hacker pleads guilty to Nefilim Ransomware attacks in U.S.
Ukrainian Artem Stryzhak (35) pleaded guilty in the U.S. for Nefilim ransomware attacks; he was arrested in Spain in 2024, extradited in April 2025. A 35-year-old Ukrainian, Artem Aleksandrovych Stryzhak (35), pleaded gu
University of Phoenix data breach impacts nearly 3.5 million individuals
The Clop ransomware gang has stolen the data of nearly 3.5 million University of Phoenix (UoPX) students, staff, and suppliers after breaching the university's network in August. [...]
Ukrainian Nefilim Ransomware Affiliate Pleads Guilty in US
Artem Stryzhak pleaded guilty to conspiracy to commit computer fraud after he was extradited earlier this year. The post Ukrainian Nefilim Ransomware Affiliate Pleads Guilty in US appeared first on SecurityWeek.
Ukrainian hacker admits affiliate role in Nefilim ransomware gang
A Ukrainian national pleaded guilty on Friday to conducting Nefilim ransomware attacks that targeted high-revenue businesses across the United States and other countries. [...]
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 76
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter CyberVolk | A Deep Dive into the Hacktivists, Tools and Ransomware
RansomHouse upgrades encryption with multi-layered data processing
The RansomHouse ransomware-as-a-service (RaaS) has recently upgraded its encryptor, switching from a relatively simple single-phase linear technique to a more complex, multi-layered method. [...]