Star Blizzard is a Russian espionage group linked to the Federal Security Service Centre 18, targeting government, defense, NGOs, and academia mainly in the UK, US, Ukraine, and NATO countries. The group uses spear-phishing, impersonation, and relationship building to steal credentials and conduct hack-and-leak operations. Since 2024, they have expanded to deploying endpoint malware including SPICA, YESROBOT, MAYBEROBOT, and CosmicPulse backdoors. Their tactics evolved from targeted to bulk phishing campaigns using fake CAPTCHA lures and exploiting iOS devices with the DarkSword exploit kit. They also use compromised WordPress sites for infrastructure and rapidly develop new malware variants after exposure. Recent campaigns have targeted over 100 organizations with the RedFlick delivery chain, showing increased scale and sophistication.
Operation Master is a sophisticated cybercrime campaign exploiting a GlobalProtect authentication bypass vulnerability (CVE-2026-0257) to compromise enterprise networks across multiple countries. The attackers conducted extensive network scanning to identify high-value targets, executed SQL injection attacks with privilege escalation to steal databases, and exfiltrated Active Directory credentials. They monetized stolen data by selling it on underground forums and operating a multi-tenant automated invoice fraud platform that sent millions of phishing messages and fraudulent links. The operation employed advanced phishing techniques including M365 OAuth device-code phishing and voice-based credential harvesting, with payments collected via PIX through serverless proxies.
A suspected Chinese-speaking threat actor linked to Red Heron conducted extensive exploitation campaigns from May to September 2026. The attacker exploited multiple vulnerabilities in WordPress (CVE-2026-63030, CVE-2026-60137) to breach a western government organization, stealing over 18,000 sensitive records including credentials and personally identifiable information. Additionally, the actor exploited CVE-2026-7273 in ZyXEL GS1900 switches, compromising 996 devices across 48 countries and exfiltrating configurations and credentials. The adversary demonstrated sophisticated capabilities such as custom tool development possibly using large language models, privilege escalation, and systematic data exfiltration via PowerShell-based techniques.
A pro-Russian hacker group named Server Killers claimed responsibility for a major denial-of-service cyberattack targeting Norway's public digital services managed by the Norwegian Digitalization Agency (Digdir). The attack, ongoing for three days, aimed to disrupt services including a unified login system for citizens. Despite the attack's scale, the agency maintained service availability nearly continuously. The group declared cyber war on Norway following Norway's renewed security cooperation with Ukraine. Norwegian officials have not commented on the claim. This incident is part of broader malign cyber activities linked to Russia targeting European countries amid geopolitical tensions.
A large distributed denial-of-service (DDoS) attack has disrupted Norway's shared government digital infrastructure, impacting public sector services since Monday. The attack has caused significant service interruptions but no specific technical details or exploited vulnerabilities have been disclosed.
Kratos is a mature Phishing-as-a-Service operation targeting Microsoft 365 users across the United States, Europe, and other regions. The platform enables attackers to steal credentials through trusted platforms, anti-bot verification, and convincing login pages. Researchers traced three generations of the kit and uncovered 1,484 previously unattributed detonations. The operation targets organizations across more than 20 countries with particularly strong concentration in the US, Spain, and Southern Europe. Kratos includes an operator panel allowing deployment of phishing domains, configurable Telegram or email delivery, geographic restrictions, and multiple anti-bot systems. The kit has evolved through three page generations (V0, V1, V2) with different exfiltration code. Activity has been visible since January 2026, with the operator panel active since September 2025.
A misconfigured Python HTTP server on a Budapest VPS exposed the complete operational infrastructure of three distinct phishing operators. The investigation uncovered codemado, an Egyptian threat actor operating since 2018, running a full AiTM platform with custom tools including MaDoO Blaster; saroula01, deploying OAuth Device Code Flow attacks that accumulated 218 victims across 12 countries over a year; and mail-argenta, a Nigerian operator identified through infostealer logs containing his own credentials. All three actors leveraged customized Evilginx forks and AI-assisted development to build MFA-bypass infrastructure from public GitHub repositories. The campaigns targeted Microsoft 365 accounts primarily, with codemado maintaining ties to RockyBelling's "The Quarry" cybercrime ecosystem. The exposed server contained phishing configurations, credential logs, RMM installers, combolists, and Telegram session files, revealing sustained operations from at least January 2025 through May 2026.
A malware-as-a-service campaign named Weedhack targets Minecraft users by distributing malicious Java JAR files via SEO poisoning and YouTube videos. The malware steals credentials, system information, and can remotely control infected systems. It is notable for its ease of access, free tier, and appeal to younger users, with infections primarily in the U. S.and several other countries. Additionally, a large CountLoader campaign spreads cryptocurrency clipper malware via cracked software, and a separate campaign distributes cryptocurrency miners through pirated content sites. These campaigns leverage sophisticated persistence and evasion techniques and have been active since early 2026.
The company has disclosed a cybersecurity incident involving one of its electronic health record environments. The post Healthcare IT Platform CareCloud Probing Potential Data Breach appeared first on SecurityWeek .
Hackers stole personal, medical, and health insurance information from the company’s internal systems. The post 3.1 Million Impacted by QualDerm Data Breach appeared first on SecurityWeek .
Between late December 2025 and mid-January 2026, hackers stole personal and health plan information from Navia’s environment. The post Navia Data Breach Impacts 2.7 Million appeared first on SecurityWeek .
The devices have been added to the NATO Information Assurance Product Catalogue (NIAPC). The post Apple iPhone and iPad Cleared for Classified NATO Use appeared first on SecurityWeek .
LockBit, originating as ABCD ransomware in 2019, has evolved to version 5.0 in September 2025. After a period of inactivity, it resumed operations in December 2025 with a reduced affiliate sign-up fee. LockBit 5.0, nicknamed ChoungDong, consists of a Loader and Ransomware component. The Loader decrypts and executes the payload in memory, while the Ransomware uses ChaCha20 and Curve25519 for encryption. This update significantly enhances evasion techniques and attack efficiency, introducing features like Mutex, Execution Delay, and Wiper. The group's history includes affiliation with the Maze cartel, independent operations, and continuous upgrades. Mitigation strategies involve monitoring process behavior, applying security patches, and preparing for swift responses using provided IoCs and MITRE ATT&CK techniques.
isVerified provides Android and iOS mobile applications designed to protect enterprise communications. The post isVerified Emerges From Stealth With Voice Deepfake Detection Apps appeared first on SecurityWeek .
The 'Ferry IoT Hack' refers to a recently reported security incident involving Internet of Things (IoT) devices used in ferry operations. Although detailed technical information is scarce, the threat highlights vulnerabilities in ferry-related IoT systems that could be exploited to disrupt ferry services or compromise operational safety. The medium severity rating suggests a moderate risk, with no known active exploits or patches currently available. European ferry operators relying on IoT for navigation, safety, or operational management may face risks of service disruption or data compromise. Mitigation requires immediate security assessments of IoT deployments, network segmentation, and enhanced monitoring. Countries with significant ferry traffic and IoT adoption, such as the United Kingdom, Norway, Greece, and the Netherlands, are more likely to be affected. Given the lack of detailed exploit information, the threat is assessed as medium severity due to potential operational impact and moderate ease of exploitation without requiring user interaction or authentication. Defenders should prioritize threat intelligence gathering and proactive security hardening of ferry IoT infrastructures.
A recently analyzed multi-stage macOS infostealer malware has been identified, highlighting a complex attack targeting macOS users. This malware operates in multiple stages to evade detection and exfiltrate sensitive information from infected systems. Although no known exploits are currently active in the wild, the threat poses a medium severity risk due to its potential to compromise confidentiality. European organizations using macOS devices should be aware of this threat, especially those in sectors with high-value data. Mitigation requires enhanced endpoint monitoring, restricting execution of unknown binaries, and user education on phishing and suspicious downloads. Countries with significant macOS market share and advanced tech sectors, such as Germany, the UK, France, and the Nordics, are more likely to be targeted. Given the malware’s complexity and potential impact on data confidentiality without requiring user interaction post-infection, the suggested severity is medium. Defenders should prioritize detection capabilities for multi-stage macOS malware and implement strict application control policies.
The MacSync Stealer is a newly identified malware targeting macOS systems by masquerading as a trusted Mac application. Its primary objective is to stealthily harvest saved passwords from the victim's device. Although it currently lacks known exploits in the wild and detailed technical indicators, its disguise as a legitimate app increases the risk of user installation and subsequent credential theft. This threat poses a medium severity risk due to its potential impact on confidentiality and the ease of social engineering involved. European organizations using macOS devices are at risk, especially those with employees who may install unverified applications. Mitigation requires enhanced endpoint protection, user education on application trust, and strict application whitelisting policies. Countries with higher macOS adoption and significant technology sectors, such as Germany, the UK, France, and the Nordics, are more likely to be affected. Given the malware’s focus on credential theft without requiring complex exploitation or user interaction beyond installation, the threat severity is assessed as medium. Defenders should prioritize detection of suspicious app behavior and restrict installation of unverified software to reduce exposure.
MacSync Stealer malware has evolved from using drag-to-terminal and ClickFix techniques to a more sophisticated approach. The new variant is delivered as a code-signed and notarized Swift application within a disk image, eliminating the need for direct terminal interaction. The malware retrieves an encoded script from a remote server and executes it via a Swift-built helper executable. The installer is signed with Developer Team ID GNJLS3UYZ4 and contains decoy files to inflate its size. The malware performs various checks, including internet connectivity and execution timing, before downloading and executing the second-stage payload. This evolution reflects a broader trend in macOS malware, where attackers attempt to bypass security measures by using signed and notarized executables.
