high severity August 22, 2026 · 3 min read Unverified claim — what this is

Longhorn Investments Listed by Coinbase Cartel Ransomware Group

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

Longhorn Investments was listed on the coinbasecartel ransomware leak site. The group claims to have stolen internal data.
— from Coinbase Cartel’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.

Longhorn Investments Listed by Coinbase Cartel Ransomware Group

Your financial account records at Longhorn Investments may now be in the hands of the ransomware group known as coinbasecartel. The group has listed Longhorn Investments on its leak site, claiming to have stolen internal data. Longhorn Investments has not publicly confirmed the claim as of writing.

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This means the uncertainty itself is the immediate reality. You cannot yet know whether any of your personal or account information was taken, because the listing provides no inventory of what was allegedly accessed and no count of affected individuals. The filing date is August 22, 2026; the record states neither when any incident occurred nor when it was discovered.

What a Ransomware Leak-Site Listing Actually Establishes

Coinbasecartel, like many ransomware-extortion crews, publishes company names on dark-web leak sites to pressure victims into paying. These listings are marketing. They are produced by the attacker, not by an independent investigator or regulator. Many turn out to be genuine compromises. Others prove to be recycled data from earlier incidents, exaggerated claims, or sometimes entirely false entries intended to damage reputations or extract payment without any breach having occurred.

At this stage the listing is simply an accusation. Real confirmation would require an admission by Longhorn Investments, a regulatory filing that discloses specific compromised records, or forensic evidence released by a credible third party. None of those exist here. The absence of detail in the listing does not prove safety, but it also does not prove harm. It proves only that one ransomware group has chosen to name this firm.

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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 Coinbase Cartel · 213 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed August 22, 2026

Last reviewed August 22, 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

Coinbase Cartel — 213 incidents tracked

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

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