Was Eligibility Tracking Calculators hit by ransomware?

Eligibility Tracking Calculators was listed by the blackshrantac ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the blackshrantac ransomware group?

blackshrantac is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Eligibility Tracking Calculators breach?

blackshrantac published data attributed to Eligibility Tracking Calculators. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Eligibility Tracking Calculators

Claimed by Blackshrantac · listed 9 months ago

Age

since listed · data leaked

Status timeline

ListedOct 28, 2025
Data leakeddate unknown

At a glance

Group: Blackshrantac
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Oct 28, 2025

About the victim

AI dossier — public-source company profile

Eligibility Tracking Calculators (ETC) is a US-based technology company that provides software solutions for employee benefits eligibility tracking and calculation. Its clients include employers, insurance brokers, and CPA firms seeking to manage benefits compliance with legal requirements. The company operates in the HR-tech and benefits administration space.

Industry: Employee Benefits Management Software

Attack summary

Severity: high — Data has been published (not merely announced) by the threat actor. Given ETC's business handling employee benefits eligibility data for employers, brokers, and CPA firms, the likely exposure includes PII and sensitive HR/financial records at potentially significant scale, warranting a high severity classification.

The group blackshrantac claims to have published data belonging to ETC, with the disclosure status marked as data_published. The specific nature of the exfiltrated data is not detailed in the post, though the company's business context suggests potential exposure of employer and employee benefits-related records.

high

Data the group says was taken

AI dossier — extracted from the leak post

Employee benefits eligibility records
Employer client data
Insurance broker information
CPA firm records
Compliance-related documentation

Original description

AI-summarised, not from the leak post

"Eligibility Tracking Calculators" (ETC) is a company that offers technological solutions for employee benefits management. It provides software applications that help employers, insurance brokers, and CPA firms to track and calculate their employee benefits eligibility efficiently. This assists organizations in adhering to various legal compliance requirements related to employee benefits.

Sources

Leak posthttp://jvkpexgkuaw5toiph7fbgucycvnafaqmfvakymfh5pdxepvahw3xryqd.onion/targets/19

Source

Indexed 9 months 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 blackshrantac

Based on available intelligence, blackshrantac is a recently emerged ransomware group first observed in September 2025, operating with apparent financial motivations and demonstrating a geographically diverse targeting approach across multiple continents. The group has victimized 43 known entities primarily across India, the United States, Turkey, Peru, and Australia, suggesting either a broad opportunistic targeting strategy or access to varied initial compromise vectors that span different regions. Their sector targeting shows a preference for manufacturing, technology, financial services, and public sector organizations, though a significant portion of their attacks have occurred against entities in unspecified sectors, indicating either incomplete intelligence gathering or deliberate obfuscation of their targeting patterns. Due to the group's recent emergence and relatively limited public exposure, detailed information about their specific attack methodologies, tooling, encryption techniques, data exfiltration practices, or operational structure remains largely undocumented by major threat intelligence organizations and law enforcement agencies. The group's current operational status appears to be active given their recent first observation date, though the limited intelligence available suggests they may be either a smaller operation or have successfully maintained a lower profile compared to more established ransomware groups. The group has been linked to 43 public disclosures across our corpus. First observed on a leak site on September 17, 2025; most recent post January 20, 2026. The operation is currently active.

Timeline of this disclosure

October 28, 2025Eligibility Tracking Calculators listed by blackshrantacon the group's public leak site

Other recent disclosures by blackshrantac

blackshrantac has been linked to 43 public victims on Darkfield. A sample of the most recent:

See the full blackshrantac dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,549 disclosures indexed across all operators we track. Geographically, Eligibility Tracking Calculators is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by blackshrantac means Eligibility Tracking Calculators 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 blackshrantac'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.