high severity June 07, 2023 · 4 min read Unverified claim — what this is

realcomp.com Listed by lockbit3 Ransomware Group

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

Realcomp II Ltd. is proud to be Michigan’s largest Multiple Listing Service delivering cutting-edge, real-time MLS data services, support, & training to the real estate industry.Our Mission Statement:Driven by integrity, Realcomp delivers great...
— from LockBit’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.

realcomp.com Listed by lockbit3 Ransomware Group

Realcomp II Ltd., Michigan’s largest Multiple Listing Service for the real estate industry, appeared on the LockBit 3.0 ransomware leak site on June 07, 2023. The listing states that internal files were exfiltrated during a ransomware attack. The company has not publicly quantified how many individuals or real-estate professionals may have had their information placed at risk.

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Details in the Leak-Site Listing

The LockBit 3.0 leak page, still accessible via its onion address as of the initial publication date, claims that Realcomp’s internal files were stolen and will be published if a ransom is not paid. The disclosure does not specify the volume or exact categories of data taken, only that internal files were allegedly exfiltrated. No sample data appears to have been posted at the time the listing went live, which is consistent with LockBit’s tactic of applying publication pressure before releasing proof packets. The notification also does not detail the initial access vector or the precise date the intrusion occurred.

Why This Matters for You and Your Family

When a regional real-estate multiple listing service is hit, the ripple effects reach far beyond the company. Real estate agents, buyers, sellers, appraisers, and title professionals routinely upload documents containing names, addresses, phone numbers, email addresses, Social Security numbers for tax reporting, bank routing details, and property transaction records. If any of those records were inside the stolen files, your personal information could now sit on a dark-web server controlled by extortionists. Even if you never directly used Realcomp’s portal, your data may have been shared by an agent, a title company, or a lender that does business with them.

Real estate transactions create long-lived digital paper trails that identity thieves prize. A single exposed closing disclosure or HUD-1 form can give criminals enough to file fraudulent tax returns, open accounts in your name, or impersonate you during future home purchases.

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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 sample582 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.

Report details & sourcing

Attributed to LockBit · 3016 incidents tracked →Dispossessor · 344 incidents tracked →

Severity High

Disclosed June 07, 2023

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.

Threat-actor tracker

LockBit — 3016 incidents tracked

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

Threat-actor tracker

Dispossessor — 344 incidents tracked

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

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