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high severity June 01, 2023 · 3 min read Unverified claim — what this is

Mission Community Hospital Listed by ransomhouse Ransomware Group

If you were named in this filing, here’s what is being claimed, and what it would mean for you.

Mission Community Hospital (MCH) is a two-campus acute care hospital located in the San Fernando Valley. Licensed for 85 medical/surgical beds and 60 acute psychiatric beds, we provide a full range of medical, surgical, psychiatric and emergency care. MISSION COMMUNITY HOSPITAL IS PROUDLY JOINT COMMISSION ACCREDITED AND EARNS FIVE STARS FROM CMS.

— from Ransomhouse’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.
Mission Community Hospital Listed by ransomhouse Ransomware Group

On June 1, 2023, Mission Community Hospital appeared on the RansomHouse ransomware leak site. The listing indicates that internal files were exfiltrated during a ransomware attack on the two-campus acute care facility in California’s San Fernando Valley. The hospital, licensed for 85 medical/surgical beds and 60 acute psychiatric beds, has not publicly quantified how many patients or staff may be affected, and the leak-site posting does not detail the volume or specific categories of data taken.

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Reported Details from the Listing

The RansomHouse leak site entry states that internal files were exfiltrated following a ransomware deployment at Mission Community Hospital. No patient record count is provided, nor does the posting specify exact data types such as names, Social Security numbers, medical histories, or billing information. The disclosure simply states that files were stolen and are now hosted on the extortion platform. As of the listing date, the hospital had not issued a separate public notification detailing the incident’s scope, leaving the full extent of exposed information unknown to the public.

Why This Matters for You and Your Family

If you or a family member received care at Mission Community Hospital, your personal and medical information may now sit in an attacker-controlled archive. Healthcare data is especially sensitive because it combines identity details with protected health information that retains value to criminals for years. Even without an exact count of affected records, the breach represents a high-severity exposure for anyone whose records passed through the hospital’s systems. The uncertainty itself creates practical risk: you cannot assume your information is safe simply because the listing is vague.

Doxxing and Identity-Chain Risks

Stolen internal files frequently contain spreadsheets or databases that link names, dates of birth, addresses, phone numbers, and sometimes Social Security numbers. Once these appear on a leak site, other criminals can combine them with data from earlier breaches to build complete identity profiles. A single hospital record can anchor a chain that reveals your email addresses, usernames, and even children’s gaming accounts when the same password or recovery phone number is reused. These chains accelerate doxxing, account takeovers, and targeted fraud that can affect every member of a household.

RansomHouse’s Known Track Record

Public reporting attributes RansomHouse with emerging in 2022 as a double-extortion operation that exfiltrates data before encrypting systems. The group has listed healthcare organizations, manufacturers, and professional services firms, typically posting samples of stolen files and threatening full publication unless payment is made. Their playbook relies on initial access through phishing or exploited remote desktop services, followed by quiet exfiltration over days or weeks. RansomHouse does not always deploy ransomware; in many cases the mere threat of leaking sensitive internal files is enough to pressure victims. The group maintains an active leak site and continues to add new victims monthly.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity so you can see exactly what chains back to the Mission Community Hospital breach.
  • Rotate any password you ever used at the hospital or on related medical portals anywhere it is reused, and switch to 2FA through an authenticator app rather than text messages.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure of your information is caught in hours instead of months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts, which often become the weakest link when credential leaks cascade into takeovers.
  • Let remediation specialists handle data-broker takedown requests and other cleanup steps that most individuals lack the time or expertise to manage alone.

The incident underscores that healthcare breaches continue to surface long after the initial compromise, often with limited transparency. Taking concrete steps now limits how far attackers can travel down the identity chain that begins with this leak. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. Start your DoxxScan trial today to gain visibility and control over the exposure created by the Mission Community Hospital breach.

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.

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Mission Community Hospital 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 June 01, 2023
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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