A multi-stage phishing campaign targets users in Russia with ransomware and Amnesia RAT using fake business documents as lures. FortiGuard Labs researchers uncovered a multi-stage malware campaign mainly targeting users in Russia. The attack uses fake business documents as social engineering lures to distract victims while malware runs in the background. It escalates to full […]
Researchers found over 20 flaws in Dormakaba access systems that could let attackers remotely unlock doors at major organizations. Researchers from SEC Consult discovered and fixed more than 20 security flaws in Dormakaba physical access control systems. The experts uncovered multiple critical vulnerabilities in Dormakaba physical access control systems based on exos 9300. These enterprise […]
Microsoft issued emergency updates to fix an actively exploited Office zero-day, CVE-2026-21509, affecting Office 2016–2024 and Microsoft 365 Apps. Microsoft released out-of-band security updates to address an actively exploited Office zero-day vulnerability tracked as CVE-2026-21509. The issue is a security feature bypass vulnerability that affects multiple Office versions, including Microsoft Office 2016, Microsoft Office 2019, […]
Crunchbase confirms a data breach after cybercrime group ShinyHunters claims to have stolen over 2 million personal records. Crunchbase confirmed a data breach after the cybercriminal group ShinyHunters claimed to steal over 2 million personal records from its systems. The group leaked a 402 MB compressed archive on their website due to a failed extortion […]
Microsoft warns of a multi-stage phishing and BEC campaign hitting energy firms, abusing SharePoint links and inbox rules to steal credentials. Microsoft reports an active multi-stage phishing campaign targeting energy sector organizations. The campaign misused SharePoint file-sharing to deliver phishing links and created inbox rules to hide malicious activity and maintain persistence. After the initial […]
Russia-linked APT Sandworm launched what was described as the largest cyber attack on Poland’s power grid in Dec 2025. ESET linked a late-2025 cyberattack on Poland’s energy system to the Russia-linked Sandworm APT. “Based on our analysis of the malware and associated TTPs, we attribute the attack to the Russia-aligned Sandworm APT with medium confidence due to […]
Nike is investigating a possible cyber incident after the WorldLeaks group claimed it stole data from the company’s systems. Nike is probing a potential security breach after the WorldLeaks cybercrime group claimed it accessed and stole data from the company’s systems. The footwear and apparel giant said it has launched an investigation to assess the […]
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter UNO reverse card: stealing cookies from cookie stealers PDFSIDER Malware – Exploitation of DLL Side-Loading for AV and EDR Evasion VoidLink: Evidence That the Era of Advanced AI-Generated Malware Has Begun PyPI Package Impersonates […]
A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. Osiris ransomware emerges, leveraging BYOVD technique to kill security tools U.S. CISA adds a flaw in […]
Researchers identified a new Osiris ransomware used in a November 2025 attack, abusing the POORTRY driver via BYOVD to disable security tools. Symantec and Carbon Black researchers uncovered a new ransomware strain named Osiris, used in a November 2025 attack against a major Southeast Asian food service franchise operator. The attackers deployed a malicious driver, […]