CybersecurityTechnology

Iran-Linked MuddyWater Group Exploits Hijacked Emails in Global Cyber Espionage Push

A sophisticated phishing operation attributed to Iranian threat actor MuddyWater has compromised email accounts to distribute malware globally. The campaign uses malicious Word documents to deploy backdoors and credential stealers against high-value targets.

Global Phishing Campaign Leverages Compromised Email Accounts

Cybersecurity researchers have uncovered a sophisticated global phishing campaign that leverages compromised email accounts to distribute malware, according to reports from threat intelligence firm Group-IB. The espionage operation, attributed with high confidence to the Iran-linked threat actor known as MuddyWater, has targeted international organizations across multiple regions in what analysts suggest is an intelligence-gathering initiative.

CybersecuritySoftware

Microsoft Neutralizes 200+ Fraudulent Certificates in Teams Malware Campaign

Microsoft has disrupted a major malware campaign using fraudulent certificates to sign fake Teams installers. The threat actor deployed backdoors and ransomware through spoofed download sites targeting unsuspecting users. Security experts warn this represents an escalation in cybercriminal tactics.

Major Certificate Revocation Operation

Microsoft Threat Intelligence has reportedly revoked more than 200 certificates that were fraudulently signed by threat actors and used in fake Microsoft Teams setup files to deliver backdoors and malware. According to reports, the campaign was identified in late September and involved sophisticated social engineering techniques to compromise users.

CybersecuritySoftware Guides

Windows 10 Support Ends: How Microsoft Defender Provides Ongoing Protection

Microsoft has officially ended support for Windows 10, leaving millions of devices without security updates. However, Microsoft Defender will continue providing antivirus protection while security intelligence updates continue through 2028. The company strongly recommends upgrading to Windows 11 for comprehensive security.

As of October 14, 2025, Microsoft has officially ended support for its widely-used Windows 10 operating system, marking a significant transition in the technology landscape. While this means the OS will no longer receive critical security patches or technical assistance, Microsoft has clarified that its built-in Microsoft Defender antivirus protection will continue functioning to help defend against malware and cyber threats. This creates a complex security environment where partial protection remains available, but comprehensive security requires upgrading to newer systems.

Understanding the Windows 10 Support Termination