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high severity December 16, 2025 · 3 min read Unverified claim — what this is

www.advancedentdenver.com Listed by lynx Ransomware Group

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

www.advancedentdenver.com was listed on Lynx's leak site. Lynx claims to have stolen internal data. This is the group's claim, not a confirmed finding.

www.advancedentdenver.com Listed by lynx Ransomware Group

On December 16, 2025, the medical practice Advanced ENT & Allergy Center in Denver appeared on the leak site of the lynx Ransomware Group. Internal files were allegedly exfiltrated during a ransomware attack on the clinic that provides allergy testing, sinus treatments, and related care to patients in the Denver area.

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What's Publicly Reported from Reporting

Public reporting indicates the clinic’s systems were compromised and data was stolen before the ransomware demand was issued. The lynx Ransomware Group listed www.advancedentdenver.com on its leak site that day. Available reporting describes the exposed material as internal files; the exact number of patients affected remains unknown. The practice, which has operated for more than 20 years, offers both in-person and telehealth appointments for allergy and sinus conditions.

Why This Matters for You and Your Family

When a local medical provider is breached, the information stolen often includes names, addresses, dates of birth, phone numbers, email addresses, insurance details, and clinical notes. Any of these records can be used to file fraudulent tax returns, open accounts in your name, or impersonate you during customer-service calls. For families, a single breach can expose both parents and children if they share the same insurance policy or household address. Once that data reaches criminal marketplaces, it rarely disappears.

The Doxxing and Identity-Chain Risks

Medical records frequently contain enough personal detail to link an email address or phone number to real-world identities. Attackers then cross-reference those details with credentials stolen from other breaches, gaming platforms, or social-media accounts. The result is an identity chain that can lead to doxxing, SIM-swapping, or targeted extortion. Credential leaks like this one regularly cascade into account takeovers on gaming services, especially when children use family email addresses for Roblox, Fortnite, or other platforms.

Lynx Ransomware Group Track Record

Public reporting attributes the group’s emergence to mid-2024. Since then lynx has listed dozens of organizations, focusing primarily on healthcare providers, small manufacturers, and professional service firms. Their typical playbook involves initial access through phishing or exploited remote-desktop services, followed by exfiltration of sensitive files and deployment of ransomware. If payment is not received, the group publishes samples or full datasets on its onion-site leak page and pressures victims through direct contact. Exact success rates are difficult to verify, but healthcare victims appear repeatedly in their published claims.

What to do

  • Run a DoxxScan to map every link between your emails, phone numbers, handles, and real identity so you can see exactly what this claimed breach connects to.
  • Rotate the password used at Advanced ENT & Allergy Center anywhere it is reused and enable 2FA through an authenticator app rather than text messages.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information appears it is caught in hours, not months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts that often chain back to the same address or parent email.
  • Let remediation specialists handle takedown requests across data brokers and exposed profiles while you focus on securing your own accounts.

The incident shows how quickly a routine medical visit can become part of a larger data economy. Acting promptly limits how far the stolen information can travel. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, with household coverage that includes children’s gaming accounts. Starting that process now can shorten the window between breach and discovery for your family.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

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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.

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Report details & sourcing

Severity High
Disclosed December 16, 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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