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high severity December 30, 2023 · 3 min read Unverified claim — what this is

maisonsdelavenir.com Listed by lockbit3 Ransomware Group

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

Maisons de l’Avenir, house builder in Brittany and Loire-Atlantique, presents its house offers in your area.

— 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.
maisonsdelavenir.com Listed by lockbit3 Ransomware Group

On December 30, 2023, French home builder Maisons de l’Avenir appeared on the LockBit 3.0 ransomware leak site. The company, which constructs houses in Brittany and Loire-Atlantique, had its internal files exfiltrated during a ransomware attack. The listing does not specify the number of people affected or detail exactly which records were taken.

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Details from the Leak-Site Listing

The LockBit 3.0 panel states that Maisons de l’Avenir suffered a ransomware intrusion and that attackers successfully exfiltrated internal files. No sample data is shown on the public page, and the disclosure does not quantify the volume or types of documents involved. The entry was first indexed on ransomware.live on December 30, 2023. As is typical with these listings, the group threatens to publish the stolen material unless the victim pays an undisclosed ransom. The primary source provides no further technical indicators such as initial access vector or exact date of compromise.

Why This Matters for You and Your Family

When a regional house builder is breached, the people whose information sits in its files face direct risk. Customers who inquired about plots, signed purchase contracts, or financed new homes often provide full names, home addresses, phone numbers, email addresses, date of birth, and sometimes bank or mortgage details. If those records were taken, they can be used for identity theft, loan fraud, or targeted phishing. Even if the leak-site listing does not state the precise data types, the nature of a home builder’s business means personal and financial information is almost always present. Your family’s details could already be circulating among criminals who buy and sell such datasets on dark-web forums.

The Doxxing and Identity-Chain Risk

Stolen internal files rarely contain only one data point. A single customer record can link an email address to a physical building site, a phone number, and the names of family members. Attackers then cross-reference these details with other breaches, gaming accounts, or social-media handles. This creates an identity chain that leads to doxxing, account takeovers, and harassment. Credential leaks like this one frequently cascade into children’s gaming accounts that reuse the same password or security questions derived from family information. Once one account falls, the rest of the household becomes easier to target.

LockBit 3.0’s Known Track Record

Public reporting attributes the LockBit 3.0 variant to a ransomware operation that first appeared in 2019 under the original LockBit name. The group rebranded to LockBit 2.0 in 2021 and released version 3.0 in 2022. It has targeted hospitals, manufacturers, local governments, and construction firms across Europe and North America. Their standard playbook involves gaining initial access through phishing, remote-desktop brute force, or exploited vulnerabilities, followed by data exfiltration before deploying ransomware. LockBit 3.0 operators typically publish a countdown timer on their leak site and then begin releasing stolen files in batches if the victim does not pay. They also allow affiliates to use their infrastructure, which increases the number and speed of attacks.

What to do

  • Run a DoxxScan to map every link between your email, phone, home address, and any accounts tied to the Maisons de l’Avenir breach.
  • Rotate passwords used on the Maisons de l’Avenir customer portal or any related contractor logins anywhere those credentials are reused, and switch to 2FA through an authenticator app instead of SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours rather than months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts that often chain back to the same address or parent email.
  • Let remediation specialists handle data-broker takedown requests and opt-out processes that would otherwise consume weeks of your time.

The incident shows how quickly construction-sector data can move from corporate servers to criminal marketplaces. Acting promptly limits how far that information travels. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, with household coverage that includes children’s gaming accounts. Start your DoxxScan trial today to regain control of your exposed information before criminals put it to use.

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.

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maisonsdelavenir.com is one listing. Your email is probably in others.
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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed December 30, 2023
Last reviewed August 8, 2026
Affected Unconfirmed
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.
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