high severity April 15, 2026 · 3 min read Unverified claim — what this is

Questivity Listed by Coinbase Cartel Ransomware Group

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

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

Questivity Listed by Coinbase Cartel Ransomware Group

On April 15, 2026, the ransomware group known as coinbasecartel added Questivity to its public leak site, claiming that internal files had been exfiltrated from the company during a ransomware attack.

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What Public Reporting Shows

Public reporting indicates the incident involves a successful ransomware deployment followed by data exfiltration. The coinbasecartel leak page lists Questivity and displays samples of the stolen material. No exact victim count has been disclosed, and the precise number of people whose information appears in the files remains unknown. Available reporting describes the exposed data as internal files, though the full scope of personal information contained in those documents has not been independently verified by third parties.

Why This Matters for You and Your Family

When a company’s internal files are stolen and published, the information inside can include names, addresses, phone numbers, email accounts, dates of birth, and other details that belong to ordinary customers, employees, or vendors. If your data was among the records handled by Questivity, it is now at risk of being downloaded by anyone who visits the leak site. Once posted to a ransomware leak page, the clock starts for identity thieves, fraudsters, and harassers who routinely scan these repositories. For families, a single exposed record can lead to unexpected charges, loan applications in your name, or unwanted contact that affects every member of the household.

The Doxxing and Identity-Chain Implications

Stolen internal files frequently contain more than isolated records. They can link email addresses to phone numbers, physical addresses, account usernames, and even notes about family members. Attackers use these connections to build an identity chain that reveals far more than any single breach. A work email listed in one file can be matched to a personal gaming account; a phone number can be tied to social-media handles. This chaining turns a routine data leak into a roadmap for doxxing. Credential leaks like this one regularly cascade into account takeovers, especially for gaming platforms where children’s accounts are often secured with the same passwords or recovery emails used elsewhere.

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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 April 15, 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

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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