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high severity February 27, 2025 · 3 min read Unverified claim — what this is

KNFILTERS.COM Listed by clop Ransomware Group

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

Knfilters.Com was listed on Clop's leak site. Clop claims to have stolen internal data. This is the group's claim, not a confirmed finding.

KNFILTERS.COM Listed by clop Ransomware Group

On February 27, 2025, KNFILTERS.COM appeared on the public leak site operated by the Clop ransomware group. The company, formally known as K&N Engineering, Inc., confirmed that internal files had been exfiltrated during a ransomware incident. While the exact number of people whose information was taken remains unknown, anyone who has purchased from the California-based performance filter maker, interacted with its customer service, or had their details stored in the company’s systems may be affected.

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What Public Reporting Shows

Public reporting indicates that Clop added KNFILTERS.COM to its leak portal on February 27, 2025. The data consists of internal files exfiltrated after a ransomware deployment. No precise victim count has been published, and the precise contents of the stolen files have not been independently verified by third parties. Available reporting describes the incident as a classic ransomware extortion case in which the attackers threaten to publish the stolen data unless their demands are met.

Why This Matters for You and Your Family

When a retailer like K&N suffers a breach, the information exposed often includes names, addresses, phone numbers, email addresses, and payment details tied to customer orders. If you or anyone in your household has ever bought air filters, intake kits, or related automotive parts from knfilters.com, your contact and transaction records could now sit in a criminal archive. That information does not expire. It can be sold, traded, or used months or years later to impersonate you, file fraudulent tax returns, or open accounts in your name. Children’s information is sometimes swept up in these incidents through family orders or shared email addresses, turning a single breach into a household problem.

The Doxxing and Identity-Chain Implications

Stolen customer files rarely stay isolated. Attackers and data brokers routinely combine them with other leaks to build detailed profiles. An email address from this claimed breach can be linked to your social-media handles, gaming usernames, or school records for your children. Once those connections are made, targeted doxxing becomes straightforward. Credential leaks like this one frequently cascade into account takeovers on gaming platforms, where kids’ usernames and passwords are reused. A compromised Roblox or Fortnite account can expose chat logs, linked phone numbers, and home addresses, feeding the next round of harassment or identity theft.

Clop’s Publicly Known Track Record

Public reporting attributes the attack to the Clop ransomware group. The gang first gained widespread attention in 2019 and became notorious in 2023–2024 for exploiting vulnerabilities in file-transfer software such as MOVEit and GoAnywhere. Notable prior victims include large banks, healthcare systems, and consumer-facing retailers. Clop’s typical playbook involves initial access through unpatched remote-access software, quiet exfiltration of sensitive files, followed by encryption of systems and extortion demands. The group posts samples of stolen data on its leak site and gives victims a short deadline—often a matter of days—before releasing the full archive.

What to do

  • Run a DoxxScan to map every link between your email addresses, phone numbers, handles, and real-world identity so you can see exactly what this claimed breach connects to.
  • Rotate the password you used at knfilters.com anywhere it is reused and enable two-factor authentication through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information surfaces you learn within hours instead of months.
  • Cover the household with DoxxScan family coverage that extends to dependents and children’s gaming accounts that often chain back to the same addresses and emails.
  • Let remediation specialists handle takedown requests across data brokers and leak sites for you while you focus on securing your own accounts.

The breach of KNFILTERS.COM is a reminder that even specialized retailers can become links in larger identity theft chains. Taking concrete steps now limits how far attackers can travel with your data. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping that connects online handles to real identities, and hands-on remediation by specialists who manage takedowns for you and your entire household, including children’s gaming accounts that are frequently targeted after credential leaks like this one.

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 sample582 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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Knfilters.Com is one listing. Your email is probably in others.
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Report details & sourcing

Severity High
Disclosed February 27, 2025
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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