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Inside Ireland’s Public Healthcare Ransomware Scare

Krebs on Security

31, 2021, the HSE’s antivirus software detected the execution of two software tools commonly used by ransomware groups — Cobalt Strike and Mimikatz — on the Patient Zero Workstation. But the antivirus software was set to monitor mode, so it did not block the malicious commands.”

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On the Irish Health Services Executive Hack

Schneier on Security

Antivirus software triggered numerous alerts after detecting Cobalt Strike activity but these were not escalated. The antivirus server was later encrypted in the attack). across the IT estate and reliance was placed on a single antivirus product that was not monitored or effectively maintained with updates across the estate.

Antivirus 351
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Giant health insurer struck by ransomware didn't have antivirus protection

Malwarebytes

The Philippine Health Insurance Corporation (PhilHealth), has confirmed that it was unprotected by antivirus software when it was attacked by the Medusa ransomware group in September. Stop malicious encryption. Make it harder for intruders to operate inside your organization by segmenting networks and assigning access rights prudently.

Antivirus 126
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110 Nursing Homes Cut Off from Health Records in Ransomware Attack

Krebs on Security

17, unknown attackers launched a ransomware strain known as Ryuk inside VCPI’s networks, encrypting all data the company hosts for its clients and demanding a whopping $14 million ransom in exchange for a digital key needed to unlock access to the files. At around 1:30 a.m. 20, Cape Girardeau, Mo.-based ”

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Medusa Ransomware targeted over 40 organizations in 2025

Security Affairs

. “Like the majority of ransomware operators, Spearwing and its affiliates carry out double extortion attacks, stealing victims’ data before encrypting networks in order to increase the pressure on victims to pay a ransom,” reads the report published by Symantec.

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PYSA Ransomware Attacks Targeting Healthcare, Education and Government Institutions, FBI Warns

Hot for Security

The Federal Bureau of Investigation has issued a flash alert warning of an increase in PYSA ransomware attacks targeting government entities, educational institutions, private companies and the healthcare sector in the US and the UK.

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UHS hospitals hit by Ryuk ransomware attack

Security Affairs

Universal Health Services (UHS) healthcare providers has reportedly shut down systems at healthcare facilities after a Ryuk ransomware attack. Universal Health Services (UHS) is an American Fortune 500 company that provides hospital and healthcare services, in 2019, its annual revenues were $11.37 billion in 2019.