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Bitfinex

Claimed by Flocker · listed 2 years ago

26m
Age
since listed · data leaked

Status timeline

  1. ListedMay 3, 2024
  2. Data leakeddate unknown

At a glance

Group
Flocker
Status
Data leaked
Country
British Virgin Islands
Sector
Financial
Listed on leak site
May 3, 2024

About the victim

AI dossier — public-source company profile

Bitfinex is a cryptocurrency exchange and trading platform offering spot trading, margin trading, derivatives, lending, and staking services. The platform operates globally and serves both retail and institutional traders with 350+ markets and advanced trading features.

Industry
Cryptocurrency Exchange & Trading Platform
Founded
2013

Attack summary

Severity: high — Bitfinex is a major cryptocurrency exchange handling significant financial assets and customer data (account credentials, trading history, personal information). A claimed breach of 'critical data' from their servers poses substantial risk, though the truncated post lacks specific proof or detailed inventory of exfiltrated information.

The Flocker group claims to have breached Bitfinex's security and obtained critical data from servers. The leak post is truncated and provides minimal detail on the scope of exfiltration or specific data categories affected.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • critical server data

What the group claims

To the executives of Bitfinex, We have successfully breached your security measures and obtained critical data from your servers. This

Sources

Source

Indexed 2 years 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 Flocker

Flocker is a relatively new ransomware group that emerged in May 2024, operating with apparent financial motivations and having compromised at least 59 known victims within a short operational timeframe. The group's origin and affiliations remain largely undocumented by major threat intelligence organizations, with no confirmed country of origin or clear operational model regarding RaaS capabilities established in public reporting. Based on available targeting data, Flocker appears to employ opportunistic attack methodologies that have successfully compromised organizations across diverse sectors including technology, public sector, financial services, and transportation/logistics, though specific technical details regarding their initial access vectors, encryption methods, or data exfiltration practices have not been publicly documented by authoritative sources. The group has demonstrated a notable geographic reach with victims identified across the United States, UAE, Taiwan, Canada, and Zambia, suggesting either broad targeting capabilities or affiliate operations, though no specific high-profile campaigns or major incidents have been publicly attributed to them by federal agencies or established security researchers. As of current reporting, Flocker appears to remain active given their recent emergence timeline, though comprehensive threat intelligence regarding their operations remains limited in open-source reporting from authoritative cybersecurity organizations. The group has been linked to 59 public disclosures across our corpus. First observed on a leak site on May 3, 2024; most recent post July 31, 2025. The operation is currently inactive.

Timeline of this disclosure

  • May 3, 2024Bitfinex listed by Flockeron the group's public leak site

Other recent disclosures by Flocker

Flocker has been linked to 59 public victims on Darkfield. A sample of the most recent:

See the full Flocker dossier →

Sector and geography

This disclosure adds to ransomware activity in the Financial sector, which has 426 disclosures indexed across all operators we track. Geographically, Bitfinex is reported in British Virgin Islands.

If your organisation is affected

A listing by Flocker means Bitfinex 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 Flocker'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.