high severity November 13, 2023 · 3 min read Unverified claim — what this is

msim.de Listed by lockbit3 Ransomware Group

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

MICROSERVE Informations - Management GmbH is a company that operates in the Public Relations and Communications industryleos-jeans.deWe are much more than the home of your new favorite jeans. Our styling experts want to get to know you, listen...
— 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.

msim.de Listed by lockbit3 Ransomware Group

On November 13, 2023, German firm MICROSERVE Informations-Management GmbH (msim.de) appeared on the LockBit 3.0 ransomware leak site, claiming that internal files had been exfiltrated during a ransomware attack. The listing indicates that anyone whose personal or business data was stored in those systems may now face heightened exposure, even though the exact number of affected individuals remains unknown.

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Details in the Leak-Site Listing

The LockBit 3.0 portal states that internal files were exfiltrated from msim.de following a ransomware deployment. The disclosure does not quantify the volume of data taken, list specific record counts, or name the precise data types beyond the generic description of internal files. It also does not provide a public ransom demand figure or a firm publication deadline, which is consistent with many LockBit listings that rely on private negotiation pressure rather than immediate mass publication. The primary source is the onion-site posting itself, mirrored on ransomware.live at the URL below.

Why This Matters for You and Your Family

When a public-relations and communications company suffers a breach, client contact lists, correspondence, project briefs, and employee records are often among the first materials stolen. If your name, email, phone number, or address appears in any of those files, the information can be sold or published without further warning. For ordinary people this means increased risk of phishing campaigns, identity theft attempts, and unwanted exposure of business or personal relationships that were never intended to be public. Families are affected because household members frequently share email domains or appear in group contact lists tied to the same physical address.

The Doxxing and Identity-Chain Risks

Stolen internal files frequently contain more than names and emails. They can include client spreadsheets that link personal mobile numbers to corporate identities, project notes that reveal family members’ involvement, or metadata that ties gaming usernames and social handles to real-world details. Credential leaks like this one cascade into account takeovers, especially for gaming accounts belonging to you or your children. Once an attacker controls a Steam, Discord, or Roblox profile tied to your address, further personal information can be extracted and the cycle accelerates.

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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 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.

Report details & sourcing

Attributed to LockBit · 3412 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed November 13, 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.

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