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Microsoft Office Zero-Day (CVE-2026-21509) – Emergency Patch Issued for Active Exploitation

Microsoft Office Zero-Day (CVE-2026-21509) – Emergency Patch Issued for Active Exploitation

Ravie LakshmananJan 27, 2026Zero-Day / Vulnerability Microsoft on Monday issued out-of-band security patches for a high-severity Microsoft Office zero-day vulnerability exploited in attacks. The vulnerability, tracked as CVE-2026-21509, carries a CVSS score of 7.8 out… 

Indian Users Targeted in Tax Phishing Campaign Delivering Blackmoon Malware

Indian Users Targeted in Tax Phishing Campaign Delivering Blackmoon Malware

Ravie LakshmananJan 26, 2026Cyber Espionage / Malware Cybersecurity researchers have discovered an ongoing campaign that’s targeting Indian users with a multi-stage backdoor as part of a suspected cyber espionage campaign. The activity, per the eSentire… 

Malicious VS Code AI Extensions with 1.5 Million Installs Steal Developer Source Code

Malicious VS Code AI Extensions with 1.5 Million Installs Steal Developer Source Code

Ravie LakshmananJan 26, 2026AI Security / Vulnerability Cybersecurity researchers have discovered two malicious Microsoft Visual Studio Code (VS Code) extensions that are advertised as artificial intelligence (AI)-powered coding assistants, but also harbor covert functionality to… 

Firewall Flaws, AI-Built Malware, Browser Traps, Critical CVEs & More

Firewall Flaws, AI-Built Malware, Browser Traps, Critical CVEs & More

Ravie LakshmananJan 26, 2026Hacking News / Cybersecurity Security failures rarely arrive loudly. They slip in through trusted tools, half-fixed problems, and habits people stop questioning. This week’s recap shows that pattern clearly. Attackers are moving… 

Winning Against AI-Based Attacks Requires a Combined Defensive Approach

Winning Against AI-Based Attacks Requires a Combined Defensive Approach

The Hacker NewsJan 26, 2026Endpoint Security / Artificial Intelligence If there’s a constant in cybersecurity, it’s that adversaries are always innovating. The rise of offensive AI is transforming attack strategies and making them harder to… 

Konni Hackers Deploy AI-Generated PowerShell Backdoor Against Blockchain Developers

Konni Hackers Deploy AI-Generated PowerShell Backdoor Against Blockchain Developers

Ravie LakshmananJan 26, 2026Malware / Endpoint Security The North Korean threat actor known as Konni has been observed using PowerShell malware generated using artificial intelligence (AI) tools to target developers and engineering teams in the… 

Multi-Stage Phishing Campaign Targets Russia with Amnesia RAT and Ransomware

Multi-Stage Phishing Campaign Targets Russia with Amnesia RAT and Ransomware

A new multi-stage phishing campaign has been observed targeting users in Russia with ransomware and a remote access trojan called Amnesia RAT. “The attack begins with social engineering lures delivered via business-themed documents crafted to… 

New DynoWiper Malware Used in Attempted Sandworm Attack on Polish Power Sector

New DynoWiper Malware Used in Attempted Sandworm Attack on Polish Power Sector

Ravie LakshmananJan 24, 2026Malware / Critical Infrastructure The Russian nation-state hacking group known as Sandworm has been attributed to what has been described as the “largest cyber attack” targeting Poland’s power system in the last… 

Who Approved This Agent? Rethinking Access, Accountability, and Risk in the Age of AI Agents

Who Approved This Agent? Rethinking Access, Accountability, and Risk in the Age of AI Agents

AI agents are accelerating how work gets done. They schedule meetings, access data, trigger workflows, write code, and take action in real time, pushing productivity beyond human speed across the enterprise. Then comes the moment… 

CISA Adds Actively Exploited VMware vCenter Flaw CVE-2024-37079 to KEV Catalog

CISA Adds Actively Exploited VMware vCenter Flaw CVE-2024-37079 to KEV Catalog

Ravie LakshmananJan 24, 2026Vulnerability / Enterprise Security The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a critical security flaw affecting Broadcom VMware vCenter Server that was patched in June 2024 to its…