high severity July 18, 2025 · 3 min read Unverified claim — what this is

Burnham Nationwide Listed by Cicada3301 Ransomware Group

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

Burnham Nationwide was listed on Cicada3301's leak site. Cicada3301 claims to have stolen internal data. This is the group's claim, not a confirmed finding.

Burnham Nationwide Listed by Cicada3301 Ransomware Group

On July 18, 2025, real estate services firm Burnham Nationwide appeared on the leak site of the cicada3301 ransomware group with 2.5 TB of internal files listed for public release. The entry shows a countdown timer of 20 days, 19 hours and 47 minutes remaining, indicating the group is using the data as leverage for extortion.

Already exposed?

You can’t unleak data. You can take away what it’s worth.

A leaked record is where it starts, not where it ends. What turns it into your front door is the look-up sites publishing your address beside your name — and those are what an AI reads when somebody asks about you. The free scan shows you both. We write to 580 companies.

See what is exposed about you — free scan →

Watch Burnham Nationwide

Get alerted the next time Burnham Nationwide files a breach with any US regulator — the filing, dated and sourced. A free single-company slice of Signals; no account needed.

We’ll email you only about Burnham Nationwide’s future breach filings and how to watch a whole vendor list — not general marketing. Unsubscribe any time.

Watching your whole vendor list (50 to 500 companies, by tier) is GalaxyWarden Signals.

What Public Reporting Shows

Public reporting on the cicada3301 leak site, tracked by ransomware.live, lists Burnham Nationwide as a victim with 2.5 TB of exfiltrated internal files. The data was taken during a ransomware attack and is now staged for publication if the company does not meet the group’s demands. No confirmed list of specific records has been published, but the volume suggests a wide range of corporate documents, employee information, and client files may be involved. The affected users remain unknown at this time, leaving anyone whose personal data passed through Burnham Nationwide potentially exposed.

Why This Matters for You and Your Family

When a company that handles mortgages, property transactions, or relocation services is breached, the information at risk often includes names, addresses, Social Security numbers, financial details, and employment records. If your family has bought or sold a home through Burnham Nationwide or used their services in the past decade, your data could be among the 2.5 TB now held by attackers. Once posted publicly, that information does not disappear. It circulates on dark-web markets and can be used for identity theft, tax fraud, or targeted scams against you or your children for years to come.

The Doxxing and Identity-Chain Risks

Ransomware leaks rarely stop at one company’s files. A single exposed email or phone number can link to your social-media accounts, children’s gaming usernames, school records, and family addresses. Attackers and opportunistic criminals follow these chains to build full profiles. Credential leaks like this one frequently cascade into account takeovers on gaming platforms, email, and banking services. Public reporting indicates that families often discover the breach only after fraudulent loans appear or after strangers contact them using details that should have stayed private.

You’ve used today’s 5 free articles · resets tomorrow

Create a free account to keep reading

The rest of this article comes straight back — free, no card, nothing you’ve already read goes away. Then see whether your own data is exposed too: the scan on this site is free with or without an account, and the account is what keeps the result after the emailed link expires.

Reading this for a company?

GalaxyWarden Signals watches the organisations you name and emails you when one of them actually discloses — SEC 8-K Item 1.05 filings and corroborated breach records, with a JSON API. It monitors companies, not people: it does not scan you and does not remove your personal data.

See GalaxyWarden Signals →

Or make a free reader account first

Free reader account

No card, no charge. You read the blog without a limit — every article, no daily count — and it saves your exposure-scan results so you can open them again after the emailed link expires. We won’t email you anything else unless you tick the box asking us to. The next step shows what the paid plans add — free stays the first option on it.

Create a free account →

Free accounts are for personal use. If you’re reading for a company, that’s Signals (terms).

Already have an account? Log in

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 Cicada3301 · 75 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed July 18, 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

Cicada3301 — 75 incidents tracked

Every breach we've attributed to Cicada3301, in one running log. See who else they've hit →

Related breaches

high October 01, 2026