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Jewish Care Homes (Nightingale Hammerson)

listed as nightingalehammerson.org · Claimed by Kairos · listed 1 year ago

18m
Age
since listed · data leaked

Status timeline

  1. ListedJan 17, 2025
  2. Data leakeddate unknown

At a glance

Group
Kairos
Status
Data leaked
Country
United Kingdom
Sector
Healthcare
Listed on leak site
Jan 17, 2025

About the victim

AI dossier — public-source company profile

Jewish Care Homes is an independent charity established in 1840 that provides residential, nursing, dementia, respite, rehabilitation, palliative and end-of-life care to older members of the Jewish community. It operates two facilities: Nightingale House in Clapham (110 residents) and Hammerson House in Hampstead (116 residents), both in London, and employs a multi-disciplinary therapy team.

Industry
Residential & Nursing Care Homes (Elderly Care)
Address
Nightingale House, Clapham, South West London; Hammerson House, Wohl Campus, Hampstead, North London, United Kingdom
Founded
1840

Attack summary

Severity: critical — Healthcare facility targeting with likely access to sensitive medical records, resident PII, and financial information for vulnerable elderly population. Data has been published. This constitutes confirmed exfiltration of regulated healthcare data at scale.

The Kairos group claims to have attacked Nightingale Hammerson and published data. No specific details are provided in the leak post about the scope of exfiltration or encryption.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Resident personal information
  • Medical/health records
  • Financial records (resident fees)
  • Care and therapy documentation
  • Potentially staff records

What the group claims

UK - Nightingale Hammerson

Sources

Source

Indexed 1 year ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Kairos

Kairos is a recently emerged ransomware group first observed in November 2024 that appears to be primarily financially motivated, having targeted approximately 75 victims across multiple sectors and countries. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, and it is unknown whether they operate as a Ransomware-as-a-Service model or as an independent entity. Based on available targeting data, Kairos appears to focus their operations primarily on English-speaking countries including the United States, Australia, United Kingdom, and Canada, with additional activity observed in Germany, while their sector targeting spans education, healthcare, agriculture and food production, and business services, though specific attack methodologies, initial access vectors, and encryption techniques have not been publicly documented by major security organizations. Given the group's recent emergence in late 2024, there are no widely reported notable campaigns or high-profile incidents documented by CISA, FBI, or established security research firms. As of current reporting, Kairos appears to remain active based on their recent first observation date, though comprehensive threat intelligence profiles from major security organizations have not yet been published due to the group's nascent operational timeline. The group has been linked to 88 public disclosures across our corpus. First observed on a leak site on November 13, 2024; most recent post June 1, 2026. The operation is currently active.

Timeline of this disclosure

  • January 17, 2025nightingalehammerson.org listed by Kairoson the group's public leak site

Other recent disclosures by Kairos

Kairos has been linked to 88 public victims on Darkfield. A sample of the most recent:

See the full Kairos dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,600 disclosures indexed across all operators we track. Geographically, nightingalehammerson.org is reported in United Kingdom, a country with 1,217 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Kairos means nightingalehammerson.org appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, NCSC (United Kingdom), as required for your jurisdiction.
  • Monitor for the data appearing on Kairos's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.