high severity May 06, 2026 · 3 min read Unverified claim — what this is

C2O Architects Listed by The Gentlemen Ransomware Group

If you are a customer of C2O Architects, here’s what is being claimed, and what it would mean for you.

c2o-architects.be C2O Architects (C2O-Architects bv) is a Belgian architectural and urban planning firm founded on June 29, 2000, headquartered at Nieuwstraat 26, Asse, Flemish Brabant, Belgium. The studio is led by Marnik Dehaen, who also serves as Chairman of the Flemish Council of the Order of Architects, and co-owned by Erna Polspoel. The firm works across a wide range — from small private renovations and residential expansions to large-scale public projects — with a multidisciplinary team that adds value through expertise in architecture, urban desi
— from The Gentlemen’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.

C2O Architects Listed by The Gentlemen Ransomware Group

On May 6, 2026, Belgian architectural firm C2O Architects appeared on the leak site of the ransomware group known as thegentlemen. The listing indicates that internal files were exfiltrated during a ransomware attack on the company, which employs architects, urban planners, and support staff whose personal and professional data may now be exposed.

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What Public Reporting Shows

Public reporting on the ransomware.live portal shows that thegentlemen listed C2O Architects, a firm based at Nieuwstraat 26 in Asse, Flemish Brabant, Belgium. The company, founded on June 29, 2000, specializes in private renovations, residential expansions, and large-scale public projects. No exact victim count has been published, and the precise volume or content of the stolen files remains unclear from available reporting. The listing states that data was both encrypted and exfiltrated, a standard double-extortion tactic.

Why This Matters for You and Your Family

When a company like an architecture studio is breached, the information stolen often includes employee names, email addresses, phone numbers, addresses, and project-related documents that can reveal where people live or work. If you or a family member have ever worked with C2O Architects, supplied services to them, or had your information stored in their client or vendor files, that data could surface in underground forums. Internal files frequently contain contracts, invoices, or correspondence that link personal details to home addresses, making it easier for identity thieves or harassers to target ordinary families.

The Doxxing and Identity-Chain Implications

Stolen internal files rarely stay isolated. A single email address or phone number taken from a company directory can be combined with data from previous breaches to build a complete profile. Public records, social media handles, and even children’s online gaming accounts often link back to the same household address or parent names. Once attackers map these connections, they can move from simple credential theft to full doxxing, account takeovers, or targeted extortion. Credential leaks like this one frequently cascade into gaming platforms, where children’s accounts become entry points for further harassment or social engineering against the family.

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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 The Gentlemen · 1013 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed May 06, 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

The Gentlemen — 1013 incidents tracked

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

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