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high severity January 18, 2023 · 3 min read Unverified claim — what this is

Immobilienmakler in Oldenburg Listed by 8Base Ransomware Group

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

Immobilienmakler in Oldenburg was listed on 8base's leak site. 8base claims to have stolen internal data. This is the group's claim, not a confirmed finding.

Immobilienmakler in Oldenburg Listed by 8Base Ransomware Group

On January 18, 2023, German real-estate firm Immobilienpartner Claussen appeared on the leak site of the 8base ransomware group. The company, which manages more than 3,500 rental units in the Oldenburg area and on the islands of Wangerooge and Norderney, is claimed to have had internal files exfiltrated during a ransomware attack. The listing does not disclose the exact number of people affected or the specific records stolen.

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Reported Details from the Listing

The 8base leak site states that Immobilienpartner Claussen suffered a ransomware incident and that attackers successfully exfiltrated internal files. No victim count, no sample documents, and no ransom amount are published on the page. The disclosure simply lists the company name, its website, and the date the entry went live. Public mirrors of the leak site, such as ransomware.live, preserve the original 8base posting with the same limited facts. The notification does not identify the initial access vector or the precise systems compromised.

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Why This Matters for You and Your Family

When a property-management company is breached, the records most likely to be taken include tenant contracts, bank details, rental applications, proof of income, and contact information for landlords and tenants. Even though the listing does not quantify affected records, anyone who rented or bought property through Immobilienpartner Claussen since the firm began operations could have personal data exposed. For families in the Oldenburg region or on the North Sea islands, this means your home address, phone number, email, and financial references may now sit in an attacker-controlled archive. That information travels quickly once it leaves the initial leak site.

Doxxing and Identity-Chain Risks

Real-estate records are high-value connectors in doxxing chains. A single leaked rental agreement can link your full name, current address, date of birth, employer, and bank account to an email address or phone number. Attackers then cross-reference those details across other breaches to build a complete profile. The same files often contain landlord identities, making both tenants and property owners targets. Credential leaks like this one frequently cascade into gaming-account takeovers; children’s usernames and passwords reused from family email addresses become easy entry points for further harassment or extortion. Without continuous oversight, these linkages remain invisible until damage appears.

8base Group Track Record

Public reporting attributes the first major activity of 8base to mid-2022. The group operates a ransomware-as-a-service model and has listed hundreds of victims, many of them small and medium-sized businesses in Europe and Latin America. Typical playbook begins with phishing or exploited remote-desktop credentials, followed by rapid exfiltration of documents before encryption. 8base then posts a sample of stolen files and demands payment within a short window, threatening full publication if unpaid. The group’s leak site is professionally maintained and updated frequently, indicating an organized operation that treats data theft as the primary revenue driver even when ransom is refused.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real-world identity, then use the cleanup of Warden to remove what you can.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours rather than months.
  • Rotate any password you used on immobilienpartner-claussen.de or related email accounts, then enable 2FA through an authenticator app instead of SMS.
  • Cover the entire household with DoxxScan family protection that extends to dependents and children’s gaming accounts tied to the same address or shared credentials.
  • Let remediation specialists handle ongoing takedown requests for any personal records that surface on data-broker or extortion sites.

The breach of Immobilienpartner Claussen shows how quickly local business incidents can place ordinary families in the crosshairs of professional ransomware operators. Staying ahead requires more than one-time checks; it demands persistent visibility and expert help when data surfaces. DoxxScan by GalaxyWarden delivers that combination through continuous monitoring across 13.1B+ breach records and 100+ platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. Start your DoxxScan trial today and close the gaps before the next wave of extortion begins.

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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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed January 18, 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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