Third Avenue Management Listed by Metaencryptor Ransomware Group

On April 8, 2025, Third Avenue Management, a New York City-based asset manager, appeared on the leak site of the metaencryptor ransomware group. The firm, which manages investments in publicly traded securities using a value-oriented approach, is claimed to have had internal files exfiltrated during a ransomware attack. While the exact number of individuals whose data may have been exposed remains unknown, anyone whose personal or financial records were held by the company could be affected.

What Public Reporting Shows

Public reporting indicates that metaencryptor listed Third Avenue Management on its dark web leak site and began publishing what it claims are stolen internal documents. The data includes internal files exfiltrated after the ransomware deployment. No confirmed total of affected records or specific victim count has been released by the company or the attackers. The incident follows the group’s typical pattern of encrypting systems, exfiltrating data, and then pressuring the victim by threatening to publish sensitive material.

Why This Matters for You and Your Family

When an asset management firm suffers a breach, the information exposed often includes personal details of clients, account holders, or employees. That can mean names, addresses, Social Security numbers, financial account information, or investment records. For ordinary families, this creates real risk: identity thieves can open new accounts, file fraudulent tax returns, or sell your information on underground markets. Even if you are not a direct client, shared vendors or partners can create unexpected exposure chains that reach your household.

Financial records and personal identifiers do not lose their value quickly. A leak today can fuel fraud attempts months or years later when you have moved on and lowered your guard.