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Krapf Group

Claimed by Kairos · listed 1 hour ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedSep 22, 2026
  2. Data leakeddate unknown

At a glance

Group
Kairos
Status
Data leaked
Country
United States
Sector
Manufacturing
Listed on leak site
Sep 22, 2026

About the victim

AI dossier — public-source company profile

Krapf Group is a family-owned transportation company founded in 1942 and based in West Chester, Pennsylvania. It operates a fleet of over 2,500 school buses and commercial vehicles with approximately 3,500 employees.

Industry
Transportation & School Bus Operations
Address
West Chester, Pennsylvania, US
Employees
3500
Founded
1942

Attack summary

Severity: high — Confirmed exfiltration of PII at scale (thousands of bus drivers' personal information) represents significant exposure of sensitive personal data affecting a large workforce.

The kairos group claims to have exfiltrated data from Krapf Group. The disclosed data includes personal information about thousands of bus drivers.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • bus driver personal information
  • employee records

What the group claims

Founded in 1942 and headquartered in West Chester, Pennsylvania, Krapf Group is a family-owned and operated transportation business. Operates a fleet of more than 2,500 school buses and commercial vehicles with over 3,500 employees. The data also contains personal information about thousands of bus drivers.

Source

Indexed 1 hour 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 98 public disclosures across our corpus. First observed on a leak site on November 13, 2024; most recent post September 22, 2026. The operation is currently active.

Timeline of this disclosure

  • September 22, 2026Krapf Group listed by Kairos on the group's public leak site

Other recent disclosures by Kairos

Kairos has been linked to 98 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 Manufacturing sector, which has 3,696 disclosures indexed across all operators we track. Geographically, Krapf Group is reported in United States, a country with 3,167 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Kairos means Krapf Group 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, CISA (United States), 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.