NI
Ransomware Victim Healthcare

nightnurse.ch

Ransomware attack by Helldown ยท Disclosed November 6, 2024 ยท ๐Ÿ‡จ๐Ÿ‡ญ Switzerland

nightnurse.ch

Date Disclosed
Nov 6, 2024
2024
Threat Group
Helldown
36 total victims
Industry
Healthcare

Incident Analysis

nightnurse.ch was targeted by Helldown ransomware, one of the most active ransomware groups in our database with 36 confirmed victims globally. The attack was disclosed on November 6, 2024, when nightnurse.ch appeared on the group's dark web leak site.

nightnurse.ch is based in Switzerland , operating in the Healthcare sector. Switzerland ranks #13 globally for ransomware attacks, with 179 victims in our database.

Sector context: Healthcare organisations are high-value ransomware targets because patient data is extremely sensitive, regulatory penalties for breaches are severe, and operational downtime can threaten patient safety โ€” all factors that increase ransom payment pressure.

Helldown typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats โ€” paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Aug 3, 2026 16:00 UTC.

Frequently Asked Questions

Was nightnurse.ch attacked by ransomware?

Yes. nightnurse.ch was listed as a victim of the Helldown ransomware group on November 6, 2024. The organisation is based in Switzerland and operates in the Healthcare sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked nightnurse.ch?

nightnurse.ch was attacked by Helldown ransomware. Helldown is one of the most active ransomware groups, having claimed 36 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the nightnurse.ch ransomware attack occur?

The ransomware attack on nightnurse.ch was disclosed on November 6, 2024. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the nightnurse.ch ransomware attack?

The specific data stolen from nightnurse.ch has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Healthcare organisation, nightnurse.ch likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Helldown attacks?

To defend against Helldown and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.