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high severity January 24, 2025 · 3 min read Unverified claim — what this is

C3GROUP.NL Listed by clop Ransomware Group

If you are a customer of C3Group.Nl, here’s what is being claimed, and what it would mean for you.

C3GROUP.NL is a Netherlands-based company that specializes in providing IT services and solutions. Their range of services includes software development, system integration, and technology consulting. They aim to innovate and inspire businesses by offering reliable and efficient solutions that align with their specific needs and goals. With professional experience and expertise, they support companies in optimizing their business processes and increasing productivity.

— from Clop’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.
C3GROUP.NL Listed by clop Ransomware Group

On January 24, 2025, the ransomware group Clop added C3GROUP.NL to its public leak site, claiming that it had exfiltrated internal files from the Netherlands-based IT services provider.

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What Public Reporting Shows

Public reporting indicates that Clop claims to have stolen data during a ransomware attack on C3GROUP.NL, a company offering software development, system integration, and technology consulting. The listing appeared on the group's onion leak site, with samples of the allegedly stolen internal files made available for download. No specific count of affected individuals has been disclosed, and the precise volume or sensitivity of the files remains unclear from available reporting. The incident follows Clop's typical pattern of posting victim organizations after an initial period of private negotiation.

Why This Matters for You and Your Family

When an IT services company like C3GROUP.NL suffers a breach, the ripple effects often reach ordinary customers and partners. Internal files can contain contracts, employee records, client contact details, or configuration data that link back to personal information you may have shared with businesses that relied on their services. For your family, this means heightened risk of identity theft, phishing campaigns tailored with leaked details, or the sale of your data on underground forums. Even when victim counts are listed as unknown, the exposure of business records frequently leads to downstream leaks that affect individuals who never directly interacted with the breached company.

The Doxxing and Identity-Chain Implications

Credential leaks and internal documents from incidents like this frequently cascade into account takeovers. A single email address or reused password found in the exfiltrated files can unlock personal accounts, including gaming profiles belonging to you or your children. Attackers map these connections to build a complete picture of your household, linking usernames, phone numbers, addresses, and family relationships. This identity-chain process turns one breach into repeated targeting across multiple platforms, increasing the chances of doxxing, harassment, or financial fraud. Credential leaks like this one are especially dangerous for gaming accounts, where weak or reused logins can lead to permanent loss of progress, virtual goods, or even the entire profile.

Clop's Publicly Known Track Record

Public reporting attributes the attack to the Clop ransomware group, which first gained widespread attention around 2019. The group is known for targeting large organizations and has previously hit major corporations in healthcare, finance, and technology sectors. Its typical playbook involves gaining initial access through vulnerabilities in file-transfer software, exfiltrating data before encryption, and then using dual extortion: demanding payment to prevent file encryption and a second ransom to stop publication of the stolen information. Clop often waits weeks or months before listing victims on its leak site if negotiations fail.

What to do

  • Run a DoxxScan to map every link between your emails, phone numbers, usernames, and real-world identity so you can break the chains attackers rely on.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information surfaces it is caught within hours rather than months.
  • Rotate any password you used at C3GROUP.NL or related services and replace it with a unique passphrase everywhere it appears, then enable two-factor authentication through an authenticator app instead of SMS.
  • Cover the household with DoxxScan family protection that extends to your children and their gaming accounts, which often become entry points when credential leaks cascade into doxxing chains.
  • Let remediation specialists handle the time-consuming work of sending takedown requests to data brokers and monitoring for reappearance of your information.

The incident underscores that a single business breach can quietly expose your family's digital footprint long before you notice. Taking deliberate steps now limits how far attackers can travel along those identity chains. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists who also protect household and children's gaming accounts. Start your DoxxScan trial today to gain that visibility and control.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

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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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Report details & sourcing

Severity High
Disclosed January 24, 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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