high severity October 23, 2025 · 4 min read Unverified claim — what this is

DUC App: Global Money Movement, Sim... Listed by KillSec Ransomware Group

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

DUC App is a leading financial technology platform that empowers individuals and businesses to manage global payments and currency exchange effortlessly. Offering instant transfers, international mobile top-ups, cryptocurrency transactions, and robust API integrations for e-commerce, DUC App delivers a secure, user-friendly experience across web, iOS, and Android devices -- The data includes, but is not limited to, clients&amp;amp;amp;amp;#039; home addresses, phone numbers, transaction histories, email addresses, public and private crypto address keys, verified documents, passports, IDs,
— from KillSec’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.

DUC App: Global Money Movement, Sim... Listed by KillSec Ransomware Group

On October 23, 2025, the ransomware group killsec listed DUC App on its leak site, claiming to have exfiltrated internal files containing clients’ home addresses, phone numbers, transaction histories, email addresses, public and private crypto address keys, verified documents, passports, and IDs.

Watch DUC App

Get alerted the next time DUC App 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 DUC App’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 indicates that DUC App, a financial technology platform offering global payments, currency exchange, instant transfers, international mobile top-ups, cryptocurrency transactions, and API integrations, suffered a ransomware attack. The attackers posted evidence on the killsec leak site hosted via ransomware.live. The precise number of affected individuals remains unknown, but the exposed data spans both personal identifiers and sensitive financial details. No confirmed timeline for the initial breach has been publicly detailed beyond the October 23 listing date.

Internal files were allegedly exfiltrated, and the posted samples include exactly the categories listed above. Industry research from sources such as DoxxScan™ continuous monitoring indicates that financial and crypto-related platforms have become frequent targets because a single leak can expose both traditional identity data and wallet keys in one package.

Why This Matters for You and Your Family

If you or anyone in your household has used DUC App for transfers, top-ups, or crypto transactions, your home address, phone number, email, and government-issued IDs may now sit in a criminal database. That combination lets thieves open accounts in your name, request password resets on other services, or target you with convincing phishing calls and texts. Children’s accounts linked to a family email or phone are especially vulnerable because gaming platforms and social apps often share the same contact details, turning one breach into multiple entry points.

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 KillSec · 285 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed October 23, 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

KillSec — 285 incidents tracked

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

Related breaches

high September 18, 2026