Was Third Avenue Management hit by ransomware?

Third Avenue Management was listed by the Metaencryptor 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 Metaencryptor ransomware group?

Metaencryptor 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 Third Avenue Management breach?

Metaencryptor published data attributed to Third Avenue Management. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Third Avenue Management

Claimed by Metaencryptor · listed 1 year ago

$48M

Ransom

demanded

15m

Age

since listed · data leaked

Status timeline

ListedApr 8, 2025
Data leakeddate unknown

At a glance

Group: Metaencryptor
Status: Data leaked
Country: United States
Sector: Financial Services
Listed on leak site: Apr 8, 2025
Ransom demanded: $48M
Estimated revenue: $48M

About the victim

AI dossier — public-source company profile

Third Avenue Management is a New York City-based asset manager founded in 1986 and pioneering deep-value investing philosophy. The firm manages multiple investment strategies including Global Value, Small-Cap Value, Real Estate Value, and International Real Estate Value funds, with a disciplined, value-oriented approach to publicly traded securities and real estate investments.

Industry: Asset Management & Investment Advisory
Address: New York City, United States
Founded: 1986

Attack summary

Severity: high — Financial services firm with significant client assets and sensitive investment data; exfiltration of client information and fund data represents material business and regulatory risk, though no specific data categories are enumerated in the post.

Metaencryptor claims to have exfiltrated data from Third Avenue Management. The specific data categories are not detailed in the leak post excerpt provided.

high

Data the group says was taken

AI dossier — extracted from the leak post

client information
investment records
business operations data

What the group claims

Third Avenue Management is a New York City-based asset manager that utilizes a disciplined, value-oriented, and asset-based approach to investing in publicly traded securities. Revenue $48 M

Sources

Source

Indexed 1 year 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 Metaencryptor

Metaencryptor is a relatively new ransomware group that emerged in August 2023, operating with primarily financial motivations and targeting organizations across multiple sectors and geographical regions. The group appears to be an independent operation rather than a Ransomware-as-a-Service model, though limited public documentation makes definitive attribution challenging regarding their specific country of origin or connections to established cybercriminal networks. Based on their targeting patterns, Metaencryptor demonstrates a preference for manufacturing organizations, business services, and transportation/logistics companies, with their operations concentrated primarily in Western nations including Germany, the United States, Canada, Spain, and the United Kingdom. With 31 documented victims since their emergence, the group represents a moderate but persistent threat in the ransomware landscape. However, due to their recent emergence and relatively lower profile compared to major ransomware families, comprehensive technical analysis of their attack methodologies, encryption techniques, and specific initial access vectors has not been extensively documented by major cybersecurity firms or government agencies. The group's current operational status remains active as of available intelligence, though the limited public reporting suggests they operate with a smaller scale and lower visibility than prominent ransomware-as-a-service operations that typically attract more attention from law enforcement and security researchers. The group has been linked to 31 public disclosures across our corpus. First observed on a leak site on August 16, 2023; most recent post June 24, 2025. The operation is currently inactive.

Timeline of this disclosure

April 8, 2025Third Avenue Management listed by Metaencryptoron the group's public leak site

Ransom demanded: $48M

Other recent disclosures by Metaencryptor

Metaencryptor has been linked to 31 public victims on Darkfield. A sample of the most recent:

See the full Metaencryptor dossier →

Sector and geography

This disclosure adds to ransomware activity in the Financial Services sector, which has 1,184 disclosures indexed across all operators we track. Geographically, Third Avenue Management is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Metaencryptor means Third Avenue Management 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 Metaencryptor'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.