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high severity September 30, 2025 · 3 min read Unverified claim — what this is

Foremost Asset Management Listed by qilin Ransomware Group

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

Foremost Asset Management, KoreanLeak3 - First and foremost, they forgot the rules of survival in the market. Company was established in 2021 in Seoul, South Korea. Young businessman Kim Yong-chol was confident that he could manage investment ...

— from Qilin’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.
Foremost Asset Management Listed by qilin Ransomware Group

On September 30, 2025, Foremost Asset Management appeared on the leak site of the qilin ransomware group after the attackers exfiltrated internal company files during a ransomware incident. The South Korean investment firm, founded in 2021 in Seoul, had client and operational records taken; the precise number of individuals whose data may have been exposed remains unknown.

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Reported Details from Reporting

Public reporting indicates that qilin listed Foremost Asset Management on its data leak portal on September 30, 2025. The attackers claim to have stolen internal files in a ransomware operation. Available details describe the company as a relatively new investment manager established in 2021 by businessman Kim Yong-chol. No confirmed total of affected records has been released, and the exact types of data inside the exfiltrated files have not been independently verified beyond the broad description of internal documents.

Why This Matters for You and Your Family

When an investment or asset management firm loses control of internal files, the information often includes names, addresses, contact details, account numbers, and sometimes financial history. If your family has ever worked with a firm like Foremost, used similar services, or shared personal data with financial advisors, your information could be among the records now in criminal hands. That data does not stay isolated. It travels quickly through underground markets where other criminals buy it to attempt identity theft, loan fraud, or targeted scams against you or your relatives.

Children’s records are not immune. Many families list dependents on financial forms or share family email addresses that also protect gaming accounts. A single leak can therefore place both adult finances and a child’s online identity at risk.

The Doxxing and Identity-Chain Risk

Stolen internal files frequently contain email addresses, phone numbers, and account usernames. Criminals use these pieces to build identity chains that link your work email to personal social media, gaming handles, and even your home address. Once the chain exists, one breach can lead to account takeovers across multiple services. Gaming accounts belonging to you or your children are especially vulnerable because they often reuse credentials and lack strong protections. A compromised game login can expose chat logs, linked payment methods, and further personal details that accelerate doxxing.

Qilin’s Publicly Known Track Record

Public reporting attributes the attack to the qilin ransomware group. The group emerged in 2022 and has since targeted organizations across multiple countries with a double-extortion playbook: encrypt victim systems, exfiltrate data, then threaten to publish the stolen files unless a ransom is paid. Notable prior victims include healthcare providers, manufacturers, and financial services firms. Qilin typically posts samples or full datasets on its leak site when victims refuse to negotiate, using the public exposure as leverage.

What to do

  • Run a DoxxScan to map every link between your emails, phone numbers, handles, and real-world identity so you can see exactly what chains exist right now.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information appears it is caught and addressed within hours rather than months.
  • Rotate any password you used at Foremost Asset Management or any related financial service, then replace it with a unique passphrase and enable two-factor authentication through an authenticator app everywhere that password was reused.
  • Cover the entire household with DoxxScan family protection that extends to dependents and children’s gaming accounts which often chain back to the same addresses and contact details.
  • Let remediation specialists handle takedown requests for any exposed personal records while you focus on securing accounts and monitoring for suspicious activity.

The incident shows that even mid-sized financial firms remain targets and that the data they hold can reach criminals within days of a breach. Taking concrete steps now limits how far those stolen records can travel. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping that connects online handles to real identities, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. Starting that process promptly gives you and your family the clearest view of what has already leaked and the fastest route to closing those doors.

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 sample582 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.

Check your exposure
Foremost Asset Management is one listing. Your email is probably in others.
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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed September 30, 2025
Last reviewed August 8, 2026
Affected Unconfirmed
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.
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