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Ransomware victim disclosure

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Seeliger y Conde

listed as syc.es · Claimed by BrainCipher · listed 4 days ago

4d
Age
since listed · data leaked

Status timeline

  1. ListedAug 31, 2026
  2. Data leakeddate unknown

At a glance

Status
Data leaked
Country
Spain
Listed on leak site
Aug 31, 2026

About the victim

AI dossier — public-source company profile

Seeliger y Conde is a Spanish executive search and leadership consulting firm specializing in talent acquisition, development, and retention for senior management roles. They operate across multiple sectors including financial services, private equity, healthcare, and industrial, with a global network through partnerships like Kingsley Gate.

Industry
Executive Search & Leadership Consulting

Attack summary

Severity: critical — Confirmed exfiltration and publication of personal data at scale (57,000 documents), including PII of candidates and employees, plus sensitive business data (financial, legal, client records). Executive search firms handle highly sensitive career and personal information.

BrainCipher claims to have exfiltrated approximately 57,000 documents totalling over 40 GB from Seeliger y Conde, including personal data of job candidates, employee information, financial and legal records, and client dossiers. The group has published the data and set a deadline of 12 September 2026.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Personal data of job candidates
  • Employee information
  • Financial records
  • Legal records
  • Client dossiers

Original description

AI-summarised, not from the leak post

N/A

The leak post

captured from the group's site
We have about 57,000(57k) documents and files of your company, with a total size of over 40 GB. Contents: Personal data of thousands of candidates for top positions; Data on the firm’s employees; The company’s financial and legal records; clients dossier. If you think you are here by mistake, please contact us at [email protected]
⏳ Deadline: September 12, 2026 at 13:00

Sources

Source

Indexed 4 days 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 Braincipher

Braincipher is a recently emerged ransomware group that was first observed in July 2024, operating with apparent financial motivations and targeting organizations primarily across North America and Europe. The group's origin and potential affiliations remain largely undocumented by major threat intelligence organizations, though their targeting patterns suggest a broad opportunistic approach rather than nation-state backing, likely operating as an independent entity rather than through established ransomware-as-a-service infrastructure. Their attack methodology and specific technical capabilities have not been extensively documented by CISA, FBI, or major security research firms, though their victim distribution across 44 confirmed targets spanning business services, manufacturing, technology, and healthcare sectors indicates a generalist approach to target selection rather than sector-specific expertise. No major high-profile campaigns or significant law enforcement actions have been publicly documented against this group by reputable sources, suggesting either a relatively low-impact operational scale or insufficient intelligence collection on their activities. As of current reporting, the group's operational status remains unclear due to limited public documentation from established threat intelligence sources. The group has been linked to 78 public disclosures across our corpus. First observed on a leak site on July 1, 2024; most recent post August 31, 2026. The operation is currently active.

Also tracked as: brain cipher.

Timeline of this disclosure

  • August 31, 2026syc.es listed by Braincipheron the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,577 disclosures indexed across all operators we track. Geographically, syc.es is reported in Spain, a country with 129 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Braincipher means syc.es 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, INCIBE-CERT (Spain), as required for your jurisdiction.
  • Monitor for the data appearing on Braincipher'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.