high severity May 06, 2026 · 2 min read Unverified claim — what this is

Millennium Partners Listed by The Gentlemen Ransomware Group

If you are a customer of Millennium Partners, here’s what is being claimed, and what it would mean for you.

Millennium Partners was listed on The Gentlemen's leak site. The Gentlemen claims to have stolen internal data. This is the group's claim, not a confirmed finding.

Millennium Partners Listed by The Gentlemen Ransomware Group

On May 3, 2026, luxury real estate developer Millennium Partners appeared on the leak site of the ransomware group known as thegentlemen. The listing indicates that internal files were exfiltrated during a ransomware attack on the company, which owns more than 3,200 condominiums and maintains a portfolio valued at over $5 billion.

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What Public Reporting Shows

Public reporting attributes the incident to thegentlemen ransomware operation. The company, founded in 1991 and headquartered in New York City, specializes in high-end mixed-use developments in major cities including New York, Boston, San Francisco, and Washington, D.C. Available reporting describes the data as internal files, though the precise volume and specific contents have not been independently verified. No confirmed count of affected individuals has been released, but any personal information connected to residents, employees, vendors, or business partners could be included in material obtained during the breach.

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Why This Matters for You and Your Family

When a real estate company that manages luxury residential buildings suffers a breach, the people whose information ends up in the stolen files are often residents, prospective buyers, current and former employees, and their family members. Names, addresses, phone numbers, email addresses, and financial details tied to property transactions can appear in such datasets. Once that information reaches a public leak site, it becomes freely available to identity thieves, stalkers, and scammers who target ordinary families living in or connected to those buildings. Your family does not need to be a high-profile client for the exposure to create risk; simply having lived in or inquired about one of the affected properties may be enough.

Stolen internal files frequently contain spreadsheets that link tenant names to unit numbers, emergency contacts, payment records, and email addresses. Attackers can combine this data with information already circulating on the internet to build detailed profiles. A single leaked email or phone number can connect your professional life, your children’s school records, and your home address in ways that enable harassment or identity theft. Credential leaks of this nature often cascade into account takeovers on email, banking, and social media,

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach

unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

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Millennium Partners is one listing. Your email is probably in others.

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Report details & sourcing

Attributed to The Gentlemen · 1015 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed May 06, 2026

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Sources: thegentlemen leak site (via ransomware.live)

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The Gentlemen — 1015 incidents tracked

Every breach we've attributed to The Gentlemen, in one running log. See who else they've hit →

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