high severity February 01, 2025 · 4 min read Unverified claim — what this is

St. Nicholas School Listed by 8Base Ransomware Group

If you are a student of St. Nicholas School, here’s what is being claimed, and what it would mean for you.

St. Nicholas School was listed on 8base's leak site. 8base claims to have stolen internal data. This is the group's claim, not a confirmed finding.

St. Nicholas School Listed by 8Base Ransomware Group

On February 1, 2025, St. Nicholas School in São Paulo, Brazil, appeared on the leak site of the ransomware group known as 8base. The international school, which serves families across its Pinheiros and Alphaville campuses, is claimed to have had internal files exfiltrated during a ransomware attack. While the exact number of people affected remains unknown, any family connected to the school — current or former parents, students, or staff — now faces the risk that sensitive personal and financial records may be publicly exposed or sold.

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Reported Details of the Incident

Public reporting indicates that 8base listed St. Nicholas School on its data leak portal on February 1, 2025. The school, founded in 1980, offers International Baccalaureate programs from elementary through graduate level. According to available information on the ransomware.live tracker, the actors claim to have stolen internal files but have not yet published samples. No precise victim count or detailed inventory of the stolen data has been released by the school or the attackers.

The breach follows the typical 8base pattern of compromising a target, exfiltrating data, and then pressuring the victim to pay to prevent release. As of this writing, it is unclear whether any files have been made public.

Why This Matters for You and Your Family

When a school is breached, the information exposed often includes names, addresses, dates of birth, contact details, medical notes, tuition payment records, and sometimes copies of passports or family identification documents. For parents, this can mean your child’s records, your home address, and your financial information are suddenly at risk. For staff, payroll data and employment contracts may also be included.

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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 8base · 448 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed February 01, 2025

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

8base — 448 incidents tracked

Every breach we've attributed to 8base, in one running log. See who else they've hit →

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