high severity November 06, 2025 · 3 min read Unverified claim — what this is

Tass Meister Patent Firm Listed by Qilin Ransomware Group

If you are a customer of Tass Meister Patent Firm, here’s what is being claimed, and what it would mean for you.

Tass Meister Patent Firm was listed on the qilin ransomware leak site. The group claims to have stolen internal data.
— from Qilin’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.

Tass Meister Patent Firm Listed by Qilin Ransomware Group

On November 6, 2025, patent firm Tass Meister appeared on the leak site operated by the qilin ransomware group, which claims to have stolen and is prepared to publish the company’s internal files.

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What Public Reporting Shows

Public reporting indicates that Tass Meister was listed on the qilin leak portal with an announcement that internal data had been exfiltrated during a ransomware incident. The exact number of people whose information is contained in the files remains unknown. No sample data has been publicly released at the time of writing, and the firm has not issued a detailed statement confirming the breach scope or the specific types of records involved. Available reporting describes the incident as a classic ransomware double-extortion case in which the attackers first encrypt systems and then threaten to leak stolen information unless a ransom is paid.

Why This Matters for You and Your Family

When a business like a patent firm is hit, the files taken often contain personal information belonging to clients, employees, and their families. Internal files can include names, addresses, phone numbers, email accounts, financial details, and intellectual-property records that tie real people to specific projects. Once that information leaves the company’s control, it can surface on criminal forums and be used for identity theft, phishing, or harassment. For ordinary families, this means the breach could expose details you shared with the firm during patent filings, employment, or vendor relationships. The November 6, 2025 listing serves as a reminder that your data can be swept up in attacks on organizations you never expected would be targeted.

The Doxxing and Identity-Chain Implications

Ransomware operators rarely stop at one dataset. A single leaked email or phone number can be combined with information from earlier breaches to build a complete profile. Attackers link your work email to personal accounts, gaming usernames, and family members’ profiles. This chaining process turns one breach into a road map for doxxing, account takeovers, and targeted scams. Credential leaks like this one frequently cascade into gaming account compromises because children and adults often reuse passwords across work, personal, and gaming services. When a household’s data appears in multiple places, the risk of coordinated harassment or financial fraud grows quickly.

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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 Qilin · 2349 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed November 06, 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.

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Qilin — 2349 incidents tracked

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

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