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BleepingComputer · 2026-10-28
Hackers now scanning systems for recently-patched Oracle flaw
Attackers are scanning Internet-connected systems for a critical vulnerability in Oracle E-Business Suite (EBS). The recently disclosed flaw has been patched, and the probing targets systems that have not received the fix.
CISA warns of hackers now exploiting critical Node2Shell flaw
CISA confirmed on Tuesday that hackers are exploiting a critical vulnerability in Brotli. The flaw is also identified by the names Node2Shell, Broccoli2Shell and HTTP2Shell.
Nefilim and Hive ransomware affiliate gets 70 months in prison
A Ukrainian national affiliated with the Nefilim and Hive ransomware operations received a 70-month prison sentence. He was involved in attacks against hospitals, government bodies and high-revenue businesses around the world from 2018 to 2021.
Japan's GMO urges customers to shut down PCs amid ransomware threat
GMO Group urged customers to take their systems offline and power down computers following a breach of its Onamae Desktop Cloud service. The actor behind the breach threatened to deploy ransomware today.
Introducing a new AI chapter in the NCSC research problem book
The National Cyber Security Centre has introduced a chapter on AI in its research problem book. The announcement describes a major shift at the intersection of artificial intelligence and cyber security.
Cybersecurity and Infrastructure Security Agency · 2026-10-19
#StopRansomware: SafePay Ransomware
The Cybersecurity and Infrastructure Security Agency issued an advisory describing SafePay ransomware activity against businesses and critical infrastructure in the Americas, Europe and Australia, noting that the group has been highly active since August 2024. The advisory describes entry methods involving stolen or guessed passwords, security-system vulnerabilities and phishing, followed by account creation or takeover and use of legitimate tools to traverse networks, locate valuable files and disable protections.
The National Cyber Security Centre has published recommendations on configuring TLS with post-quantum cryptography. It advises beginning the migration now.
The National Cyber Security Centre describes adversary simulation, also known as red teaming. It tests capabilities for preventing cyber attacks, detecting them and responding to them.
Cybersecurity and Infrastructure Security Agency · 2026-09-04
China-Based Artificial Intelligence Companies Conducting Industrial-Scale Distillation Campaigns Against U.S. AI Companies
CISA, NSA and FBI issued a joint advisory warning that AI companies based in China are using large-scale knowledge distillation to extract restricted capabilities and proprietary functionality from leading U.S. AI models. The agencies described these targeted activities as malicious and central to the companies’ development strategies, while acknowledging that distillation also has legitimate research uses.
Cybersecurity and Infrastructure Security Agency · 2026-08-20
A Tale of Two SOCs: Insights From Two Red Team Assessments
CISA reported contrasting defensive responses during concurrent red team assessments of two organizations, although both environments experienced complete domain compromise and access to sensitive business systems and cloud resources. Organization A neither detected nor contained the activity, while Organization B quickly detected initial intrusion attempts and isolated affected systems, requiring the assessment to proceed under an assumed-breach model.
Cybersecurity and Infrastructure Security Agency · 2026-08-05
#StopRansomware: Gunra Ransomware
CISA issued an advisory on Gunra, a ransomware variant that emerged in 2025 and became a ransomware-as-a-service operation in 2026, with affiliates targeting government bodies, critical infrastructure entities and other organizations. The advisory describes attackers encrypting data and threatening to release stolen information unless a ransom is paid, and provides technical details alongside detection and mitigation guidance.
Cybersecurity and Infrastructure Security Agency · 2026-07-21
Russian State-Supported Cyber Actors Conduct Phishing Campaign Targeting Users of Zimbra Collaboration Suite
CISA reported that Russian state-backed cyber actors have targeted and compromised Western government and commercial organizations running Zimbra Collaboration Suite since at least July 2025. The announcement describes a phishing campaign attributed to an advanced persistent threat group primarily tracked as LAUNDRY BEAR.
Cybersecurity and Infrastructure Security Agency · 2026-07-08
Improve Router Hygiene to Protect Against Russian State-Sponsored Targeting
CISA warned that cyber actors from Center 16 of Russia’s Federal Security Service continue exploiting networking equipment with vulnerabilities or configuration weaknesses worldwide, compromising networks across multiple critical infrastructure sectors. The joint advisory expands on an earlier FBI announcement about activity spanning more than a decade, providing further details on attacker methods to help defenders counter the threat.