high severity August 26, 2025 · 3 min read Unverified claim — what this is

Lewis Baach Kaufmann Middlemiss PLLC Listed by Cephalus Ransomware Group

If you are a customer of Lewis Baach Kaufmann Middlemiss PLLC, here’s what is being claimed, and what it would mean for you.

Lewis Baach Kaufmann Middlemiss PLLC was listed on Cephalus's leak site. Cephalus claims to have stolen internal data. This is the group's claim, not a confirmed finding.

Lewis Baach Kaufmann Middlemiss PLLC Listed by Cephalus Ransomware Group

On August 26, 2025, the law firm Lewis Baach Kaufmann Middlemiss PLLC appeared on the leak site of the cephalus ransomware group. Public reporting indicates the firm’s internal files were exfiltrated during a ransomware attack, although the exact number of people whose personal information was exposed remains unknown.

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Reported Details of the Breach

Available reporting describes the incident as a classic ransomware operation in which attackers gained access, encrypted systems, and then published a sample of stolen data to pressure the firm for payment. The data exposed consists of internal files that almost certainly contain client records, contracts, correspondence, and employee information typical of a multi-office law practice. No precise count of affected individuals has been released, and the firm has not issued a detailed public statement on the volume or sensitivity of the records.

Why This Matters for You and Your Family

When a law firm’s internal files are stolen, the information inside often includes names, addresses, dates of birth, Social Security numbers, financial details, and family records of everyday clients. If your documents were part of any matter handled by Lewis Baach Kaufmann Middlemiss, your personal data may now sit on a ransomware leak site. That exposure can lead to identity theft, fraudulent loans opened in your name, or targeted scams against you and your children. The breach is another reminder that professional services you trust can become an unintended doorway to your family’s private life.

The Doxxing and Identity-Chain Risk

Ransomware leaks rarely stop at one company. Once internal files leave a law firm, attackers and opportunistic criminals can link the exposed data to your email addresses, phone numbers, usernames, and online accounts. A single leaked client file can connect your real identity to gaming handles, social-media profiles, or family-member records. These identity chains let criminals move from one compromised account to the next, turning a legal-matter breach into prolonged harassment, account takeovers, or doxxing campaigns that affect every member of the household.

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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 Cephalus · 19 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed August 26, 2025

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

Cephalus — 19 incidents tracked

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

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