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

Advanced Dental Listed by sinobi Ransomware Group

If you are a patient of Advanced Dental, here’s what is being claimed, and what it would mean for you.

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

Advanced Dental Listed by sinobi Ransomware Group

On November 23, 2025, Advanced Dental in Aliso Viejo, California, appeared on the leak site of the sinobi ransomware group. The dental practice, which serves families with services ranging from toddler check-ups to senior implants, is claimed to have had internal files exfiltrated following a ransomware attack. While the exact number of patients affected remains unknown, anyone who has visited the clinic in recent years should assume their personal information may now be in the hands of criminals.

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What's Publicly Reported from Reporting

Public reporting indicates that sinobi posted data stolen from Advanced Dental’s systems. The exposed material consists of internal files rather than a neatly organized database of patient records. No confirmed total of impacted individuals has been released. The practice specializes in family-oriented dental care under Dr. Chitra Tiruveedula and Dr. Joseph C. Yang and uses modern tools such as Invisalign and laser dentistry. Available reporting describes the incident as a classic ransomware deployment followed by data exfiltration and public shaming on the group’s dark-web leak page.

Why This Matters for You and Your Family

Dental offices hold the same sensitive details as many medical providers: full names, dates of birth, Social Security numbers, addresses, phone numbers, insurance information, and sometimes treatment notes that reveal health conditions. When this data reaches ransomware operators, it rarely stays contained. It can be sold, traded, or used to launch further attacks against you. For families, the risk multiplies because one breach can expose every member listed on a shared insurance plan or household address. Children’s records are especially attractive because they often remain clean for years and can be exploited for synthetic identity fraud that goes undetected until adulthood.

The Doxxing and Identity-Chain Implications

Stolen dental files frequently contain email addresses, phone numbers, and patient portal logins. Criminals combine these with information from other breaches to build detailed profiles. A seemingly harmless email from your child’s dental visit can be linked to a gaming username, a parent’s work account, or a family member’s social-media handle. Once these connections are mapped, targeted doxxing, SIM-swapping, or account takeovers become straightforward. Credential leaks like this one regularly cascade into gaming account compromises because children often reuse passwords across dental patient portals, Roblox, Fortnite, or Minecraft. The chain can expose your home address, family photos, and daily routines within hours of the data appearing on underground forums.

Sinobi Ransomware Group’s Track Record

Public reporting attributes the attack to the sinobi ransomware group. The group emerged in 2024 and has targeted healthcare providers, professional services firms, and small-to-medium businesses. Notable prior victims include other medical and dental practices whose patient data was published after ransom demands went unpaid. Their typical playbook involves initial access through phishing or exploited remote desktop credentials, followed by exfiltration of sensitive files, encryption of systems, and extortion via dual pressure: ransom payment to decrypt and a separate fee to prevent publication on their leak site. When victims refuse to pay, sinobi publishes samples and eventually the full archive on their onion site.

What to do

  • Run a DoxxScan to map every link between your family’s emails, phones, handles, and real identities so you can see exactly what this claimed breach connects to.
  • Rotate any password you ever used at Advanced Dental anywhere it is reused, then switch on 2FA through an authenticator app rather than text messages.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next leak exposing your family is caught in hours, not months.
  • Cover the entire 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 data-broker takedowns and opt-out requests while you focus on securing accounts and talking with your family about password hygiene.

The incident at Advanced Dental shows how quickly a routine dental visit can feed a larger identity compromise chain. Acting promptly limits the damage and prevents one breach from snowballing into account takeovers or doxxing attempts against you or your children. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping that connects scattered handles to real people, and hands-on remediation by specialists who manage takedowns for the whole family, including gaming accounts. Start your DoxxScan trial today to gain clear visibility and expert support before the next leak surfaces.

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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.

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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed November 23, 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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