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Cyber Threat
CTI Academy Sponsor CTI Academy
Ransomware victim Healthcare

Lena Health

Listed by Fulcrumsec on · organisation based in United States

lena.io

Disclosed
May 1, 2026
Leak-site listing date
Threat group
Fulcrumsec
30 victims listed
Country
United States
#1 most targeted
Sector
Healthcare

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Fulcrumsec. Figures and technique mappings are quoted from the source data, not inferred.

About the Fulcrumsec group

FulcrumSec is a data extortion group active since approximately September 2025, specializing in high-speed exfiltration of cloud-hosted databases by exploiting unrotated API keys and misconfigured cloud permissions rather than deploying encryption, with known victims including Australian fintech youX and LexisNexis. Fulcrumsec has listed 27 victims since May 2026.

Incident analysis

Lena Health was listed by Fulcrumsec ransomware, a group with 30 victims recorded in this database. The listing appeared on the group's leak site on May 1, 2026.

Lena Health is based in United States and operates in the Healthcare sector. United States ranks #1 worldwide for ransomware disclosures, with 10,166 victims in this 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 — all factors that increase ransom payment pressure.

Fulcrumsec typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was Lena Health attacked by ransomware?

Yes. Lena Health was listed as a victim of the Fulcrumsec ransomware group on May 1, 2026. The organisation is based in United States and operates in the Healthcare sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Lena Health?

Lena Health was attacked by Fulcrumsec ransomware. Fulcrumsec is one of the most active ransomware groups, having claimed 30 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Lena Health ransomware attack occur?

The ransomware attack on Lena Health was disclosed on May 1, 2026. 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 Lena Health ransomware attack?

The specific data stolen from Lena Health 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, Lena Health likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Fulcrumsec attacks?

To defend against Fulcrumsec 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.