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Cyber Threat
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Ransomware victim Financial Services

Bitfinex

Listed by Flocker on · organisation based in British Virgin Islands

bitfinex.com

Disclosed
May 3, 2024
Leak-site listing date
Threat group
Flocker
59 victims listed
Country
British Virgin Islands
#133 most targeted
Sector
Financial Services

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Flocker. Figures and technique mappings are quoted from the source data, not inferred.

About the Flocker group

Flocker (also linked to the FSociety brand) is a ransomware-as-a-service group active since 2023–2024, targeting Windows and Linux systems via phishing, compromised RDP, and exploit kits using a double extortion model, and observed collaborating with FunkSec. Flocker has listed 59 victims since April 2024.

Incident analysis

Bitfinex was listed by Flocker ransomware, a group with 59 victims recorded in this database. The listing appeared on the group's leak site on May 3, 2024.

Bitfinex is based in British Virgin Islands and operates in the Financial Services sector. British Virgin Islands ranks #133 worldwide for ransomware disclosures, with 4 victims in this database.

Sector context. Financial sector organisations are targeted for their access to funds, sensitive financial data, and the reputational damage a public breach can cause. Regulatory requirements also increase recovery costs.

Flocker typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was Bitfinex attacked by ransomware?

Yes. Bitfinex was listed as a victim of the Flocker ransomware group on May 3, 2024. The organisation is based in British Virgin Islands and operates in the Financial Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Bitfinex?

Bitfinex was attacked by Flocker ransomware. Flocker is one of the most active ransomware groups, having claimed 59 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Bitfinex ransomware attack occur?

The ransomware attack on Bitfinex was disclosed on May 3, 2024. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the Bitfinex ransomware attack?

The specific data stolen from Bitfinex has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Financial Services organisation, Bitfinex likely held financial records, client data, and transaction histories.

How can organisations protect against Flocker attacks?

To defend against Flocker and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.