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CISA Adds 4 Exploited Flaws to KEV, Sets May 2026 Federal Deadline

CISA Adds 4 Exploited Flaws to KEV, Sets May 2026 Federal Deadline

Ravie LakshmananApr 25, 2026Network Security / Infrastructure Security The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added four vulnerabilities impacting SimpleHelp, Samsung MagicINFO 9 Server, and D-Link DIR-823X series routers to its Known… 

FIRESTARTER Backdoor Hit Federal Cisco Firepower Device, Survives Security Patches

FIRESTARTER Backdoor Hit Federal Cisco Firepower Device, Survives Security Patches

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has revealed that an unnamed federal civilian agency’s Cisco Firepower device running Adaptive Security Appliance (ASA) software was compromised in September 2025 with malware called FIRESTARTER. FIRESTARTER,… 

NASA Employees Duped in Chinese Phishing Scheme Targeting U.S. Defense Software

NASA Employees Duped in Chinese Phishing Scheme Targeting U.S. Defense Software

Ravie LakshmananApr 24, 2026Espionage / National Security, The Office of Inspector General (OIG) of the U.S. National Aeronautics and Space Administration (NASA) has revealed how a Chinese national posed as a U.S. researcher as part… 

Tropic Trooper Uses Trojanized SumatraPDF and GitHub to Deploy AdaptixC2

Tropic Trooper Uses Trojanized SumatraPDF and GitHub to Deploy AdaptixC2

Ravie LakshmananApr 24, 2026Malware / Threat Intelligence Chinese-speaking individuals are the target of a new campaign that uses a trojanized version of SumatraPDF reader to deploy the AdaptixC2 Beacon post-exploitation agent and ultimately facilitate the… 

UNC6692 Impersonates IT Helpdesk via Microsoft Teams to Deploy SNOW Malware

UNC6692 Impersonates IT Helpdesk via Microsoft Teams to Deploy SNOW Malware

A previously undocumented threat activity cluster known as UNC6692 has been observed leveraging social engineering tactics via Microsoft Teams to deploy a custom malware suite on compromised hosts. “As with many other intrusions in recent…