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Critical Condition: The 2026 Healthcare Cyber Threat Landscape

May 4, 2026 2:15:01 PM / by The Hivemind posted in Threat Bulletin, .NET DNS Backdoor, healthcare data breaches, healthcare cybersecurity, ransomware healthcare, medical device cybersecurity, Iran cyber threat healthcare, hospital cyber attacks, healthcare supply chain attacks

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Verticals Targeted: Healthcare
Regions Targeted: US, Global
Related Families & Threat Actors: Lynx, ANUBIS, Rhysida, LockBit, ALPHV/BlackCat, Qilin, Medusa, The Gentleman, Payload, NetRunner, Genesis, ShinyHunters, Pay2Key, Handala

Executive Summary

Healthcare remains the most targeted critical infrastructure sector for cyberattacks, driven by ransomware, large-scale data theft, and increasing geopolitical activity. In 2026, threat activity reflects a convergence of ransomware operators, data extortion groups, and Iran-linked cyber operations, significantly increasing risk to healthcare delivery, patient safety, and supply chain stability.

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Lyceum .NET DNS Backdoor “DnsSystem”

Jun 24, 2022 2:22:18 PM / by PolySwarm Tech Team posted in Threat Bulletin, Lyceum, Hexane, Siamese Kitten, DnsSystem, .NET DNS Backdoor

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Executive Summary

Zscaler recently reported on a new .NET DNS backdoor “DnsSystem” used by the threat actor group known as Lyceum. It is primarily used to target entities in the Middle East.

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