high severity April 19, 2026 · 3 min read Unverified claim — what this is

Nanometrics Listed by Qilin Ransomware Group

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

Nanometrics 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.

Nanometrics Listed by Qilin Ransomware Group

On March 23, 2026, semiconductor metrology company Nanometrics appeared on the leak site operated by the qilin ransomware group, which claims to have exfiltrated internal files during a ransomware attack.

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What Public Reporting Shows

Public reporting indicates that Nanometrics was listed on the qilin leak portal with an announcement that internal data had been stolen. The exact volume of data and the specific types of files remain unconfirmed by the company in available public statements. No precise count of affected individuals has been released, leaving customers, employees, and business partners uncertain about whose information may have been taken. The listing follows the group’s typical pattern of publishing samples or proofs before escalating pressure on the victim.

Why This Matters for You and Your Family

When a company that supplies advanced manufacturing equipment suffers a breach, the exposed internal files can contain contracts, employee records, customer details, or partner information that ultimately traces back to ordinary people. Internal files exfiltrated often include spreadsheets with names, addresses, email addresses, and phone numbers. Once that data leaves the company’s control, it can be sold, traded, or used to target you and your family with phishing, identity theft, or harassment. Even if you have never heard of Nanometrics, your information may have reached them through employment, vendor relationships, or supply-chain interactions.

The Doxxing and Identity-Chain Implications

Ransomware leaks rarely stop at one dataset. A single exposed 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, then to social-media handles, gaming usernames, and family-member details. This identity chain makes it easier to hijack accounts, impersonate you, or publish personal information for harassment. Credential leaks like this one frequently cascade into gaming-account takeovers, especially for children whose usernames and passwords are reused across platforms.

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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 April 19, 2026

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

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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