high severity August 20, 2026 · 5 min read Unverified claim — what this is

Ayuntamiento de Velilla de San Antonio Listed by Kairos Ransomware Group

If you are a customer of Ayuntamiento de Velilla de San Antonio, here’s what is being claimed, and what it would mean for you.

El Ayuntamiento de Velilla de San Antonio es el organismo oficial de gobierno local y administración del municipio de Velilla de San Antonio, situado en la Comunidad de Madrid, España. Gestiona los servicios públicos, el padrón, los impuestos locales y la vida ciudadana de la localidad.
— from Kairos’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.

Ayuntamiento de Velilla de San Antonio Listed by Kairos Ransomware Group

If you have an account with the Ayuntamiento de Velilla de San Antonio, the Kairos ransomware group has listed the Spanish municipality on its leak site. The group claims it obtained files from the organisation and is using that claim as leverage. As of writing, the Ayuntamiento has not publicly confirmed the claim, data theft, or contact with the group.

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This means the only information currently available comes from the attacker’s own marketing page. No independent party has verified that any data left the municipality’s systems. For you as a resident or account holder, that uncertainty is the central fact to weigh right now.

What the Listing Claims About Your Information

The Kairos listing asserts that a password field was present in the material they say they took. The storage scheme for that password field has not been disclosed. This is important: without knowing whether the passwords were hashed with a strong, slow algorithm or stored in a weaker form, you cannot gauge the exact cracking risk. The safest assumption is that you should treat the credential as potentially usable by the attackers until you change it.

No permanent government or biographic identifiers such as national ID numbers, dates of birth tied to official records, or tax identifiers were listed in the sample data shown. The absence of those fields limits some of the more durable identity risks that appear in other incidents. However, if the claim is accurate, any municipal account details, correspondence, or local service records you have with the Ayuntamiento could be in the claimed material.

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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 Kairos · 98 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed August 20, 2026

Last reviewed August 20, 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

Kairos — 98 incidents tracked

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

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