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high severity February 12, 2024 · 3 min read Unverified claim — what this is

fidcornelis.be Listed by lockbit3 Ransomware Group

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

Fiduciaire Cornelis & Budts Informatie Bisschoppenhoflaan 384 bus 3, 2100 Antwerpen

— from LockBit’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.
fidcornelis.be Listed by lockbit3 Ransomware Group

On February 12, 2024, the Belgian accounting firm Fiduciaire Cornelis & Budts appeared on the LockBit 3.0 ransomware leak site. The listing states that internal files were exfiltrated during a ransomware attack. The firm, located at Bisschoppenhoflaan 384 bus 3, 2100 Antwerpen, has not yet published a public notification quantifying how many clients or employees are affected.

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Details from the Leak Site

The LockBit 3.0 panel lists Fiduciaire Cornelis & Budts as a victim and claims successful data theft. The disclosure indicates that the attackers downloaded internal files but does not specify the volume, exact file types, or whether client tax records, financial statements, or personal identification documents were included. No ransom amount or payment deadline is shown in the current listing. The primary source remains the LockBit leak page itself, mirrored on ransomware.live at the onion address provided below.

Why This Matters for You and Your Family

If you are a client of this fiduciary firm, your personal financial data, tax filings, or business records may now sit in a criminal repository. Even when exact record counts remain unknown, the exposure of internal files from an accounting practice typically includes names, addresses, dates of birth, national identification numbers, income details, and bank account information. For ordinary families this creates immediate risks of identity theft, fraudulent loan applications, and targeted phishing campaigns that reference your real financial history. The breach also affects the firm’s own employees whose payroll and HR files are likely among the stolen material.

Doxxing and Identity-Chain Risks

Stolen internal files often contain spreadsheets that link client names to email addresses, phone numbers, and sometimes spouse or dependent details. Once attackers or data resellers publish even a fraction of this material, it becomes trivial to chain the information across dozens of other platforms. A single leaked email can unlock gaming accounts, social-media profiles, and cloud storage belonging to you or your children. These chains accelerate doxxing because one confirmed address or phone number validates additional records bought from brokers. Credential leaks like this one frequently cascade into account takeovers that expose family photos, private messages, and location history.

LockBit 3.0 Track Record

Public reporting attributes LockBit 3.0 as the latest iteration of a ransomware operation that first appeared in 2019 under the name LockBit 2.0. The group has targeted hospitals, manufacturers, financial services firms, and professional-services companies worldwide. Their typical playbook involves initial access through compromised remote-desktop credentials or phishing, followed by rapid exfiltration of sensitive folders before encryption. After exfiltration they publish samples on their leak site and demand payment, threatening to release the full archive if the victim refuses. The February 12 listing of Fiduciaire Cornelis & Budts fits this pattern exactly.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone, and real identity (cleanup of Warden).
  • Rotate any password you ever used at Fiduciaire Cornelis & Budts and enable 2FA through an authenticator app everywhere that password was reused.
  • Enable continuous DoxxScan monitoring so the next breach exposing your data is caught in hours rather than months.
  • Cover the household — DoxxScan family coverage extends to dependents and children’s gaming accounts that chain back to the same address or parent email.
  • Let remediation specialists handle takedown requests across data brokers and leak forums for you.

The incident underscores that even mid-sized local firms handling sensitive personal finances remain high-value targets for ransomware operators. A forward-looking approach means assuming your information will surface eventually and maintaining constant visibility across the expanding breach landscape. DoxxScan by GalaxyWarden delivers that visibility through continuous monitoring across 13.1B+ breach records and 100+ platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. Start your DoxxScan trial today to close the gaps before criminals exploit them.

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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fidcornelis.be is one listing. Your email is probably in others.
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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed February 12, 2024
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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