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Cayman National Bank

Claimed by Killsecurity · listed 1 year ago

600 GB
Data size
16m
Age
since listed · data leaked

Status timeline

  1. ListedMar 21, 2025
  2. Data leakeddate unknown

At a glance

Group
Killsecurity
Status
Data leaked
Country
Cayman Islands
Sector
Financial Services
Listed on leak site
Mar 21, 2025
Data size
600 GB

About the victim

AI dossier — public-source company profile

Cayman National Bank is a full-service financial institution operating across the Cayman Islands, offering personal banking, business banking, premier banking, investment services, trust services, and fund management. The bank operates a network of customer service centres and ATMs and provides online and mobile banking platforms.

Industry
Banking & Financial Services

Attack summary

Severity: high — Confirmed data publication from a regulated financial institution with customer PII and financial data at scale; exfiltration of banking customer records represents significant regulatory and reputational risk regardless of proof file count.

Killsecurity claims to have conducted an attack on Cayman National Bank and published data. No specific details on the nature of the attack (encryption vs. exfiltration) or data categories are provided in the available leak post excerpt.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Banking customer records
  • Financial transaction data
  • User credentials/authentication data
  • Personal identification information

What the group claims

N/A

The leak post

captured from the group's site
Founded in 1997, iCare Software, based in the United States, delivers innovative management solutions for childcare and afterschool programs. Serving childcare centers, preschools, afterschool programs, and multi-site operations, iCare automates critical tasks like attendance tracking, staff scheduling, tuition collection, and compliance reporting. Its unique offerings include AI-driven analytics, business intelligence dashboards, and CRM tools to boost enrollment and staff retention. With seamless data migration and robust back-end technology, iCare empowers providers to focus on quality care while streamlining operations and driving growth.
Cadorim simplifies money transfers to Mauritania, offering a secure, user-friendly platform for individuals and businesses. With a focus on speed, affordability, and accessibility, Cadorim enables seamless transactions in just three clicks, available around the clock. The company ensures maximum security for every transfer, provides competitive exchange rates with no fees, and processes transactions instantly. Headquartered in Brussels, Belgium, with operations in Nouakchott, Mauritania, Cadorim serves customers seeking reliable, cost-effectiv…

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 Killsecurity

Killsecurity is a relatively new ransomware group that emerged in March 2024, operating with apparent financial motivations and demonstrating rapid expansion in their victim targeting. The group's origin and affiliations remain unclear due to limited public documentation from major threat intelligence sources, though their global targeting pattern suggests a sophisticated operation. Based on available victim data, Killsecurity has compromised 276 organizations primarily across the United States, India, United Kingdom, Brazil, and Belgium, with a particular focus on healthcare, technology, business services, and financial sectors. The group's attack methodology, encryption techniques, and specific tools remain undocumented in public threat intelligence reports from established security firms. Notable campaigns and high-profile victims have not been extensively documented by major cybersecurity organizations or law enforcement agencies, likely due to the group's recent emergence. Killsecurity appears to remain active as of current reporting, though comprehensive analysis of their operations is limited by the lack of detailed technical documentation from reputable threat intelligence sources. The group has been linked to 277 public disclosures across our corpus. First observed on a leak site on March 21, 2024; most recent post May 15, 2026. The operation is currently active.

Timeline of this disclosure

  • March 21, 2025Cayman National Bank listed by Killsecurityon the group's public leak site
Data size
600 GB

Other recent disclosures by Killsecurity

Killsecurity has been linked to 277 public victims on Darkfield. A sample of the most recent:

See the full Killsecurity dossier →

Sector and geography

This disclosure adds to ransomware activity in the Financial Services sector, which has 1,184 disclosures indexed across all operators we track. Geographically, Cayman National Bank is reported in Cayman Islands.

If your organisation is affected

A listing by Killsecurity means Cayman National Bank 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.
  • Monitor for the data appearing on Killsecurity'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.