[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fH6S44Lp8fm_s9SDZJFZyRktKr37CXT-VbXnirP-0Xuk":3},{"article":4,"iocs":47},{"id":5,"title":6,"slug":7,"summary":8,"ai_summary":9,"brief":10,"full_text":11,"url":12,"image_url":13,"published_at":14,"ingested_at":15,"relevance_score":16,"entities":17,"category_id":24,"category":25,"article_tags":29},"3c7b2bbc-439b-4e17-8d33-ecbe65ce7282","150,000 Impacted by Madera Community Hospital Data Breach","150-000-impacted-by-madera-community-hospital-data-breach-778f2b","An extortion group stole personal, financial, and medical information from the hospital’s network. The post 150,000 Impacted by Madera Community Hospital Data Breach appeared first on SecurityWeek.","Madera Community Hospital in California has disclosed a data breach affecting 150,810 individuals. An extortion group accessed the hospital's network in May 2025, exfiltrating personal, financial, and medical information, including Social Security numbers and treatment details. The attackers reportedly withdrew their ransom demand, claiming they did not want to harm patients. The hospital has begun notifying affected individuals and law enforcement.","Madera Community Hospital reports a data breach impacting over 150,000 individuals.","Madera Community Hospital in California is notifying just over 150,000 individuals that their personal, financial, and medical information was compromised in a data breach. A not-for-profit community healthcare provider serving Madera County and surrounding areas, Madera Community Hospital provides emergency services, surgical services, acute care, diagnostic imaging, and specialized medical programs. The incident, the hospital says in an incident notice, occurred in May 2025, when hackers accessed its network for two days and likely exfiltrated certain files. According to the hospital, after identifying files that were potentially exfiltrated in the attack, it engaged with experts and a data-review firm for analysis. “We received the data-review results in April 2026 and have been working since then to ensure we have accurate contact information for notifying potentially impacted individuals,” Madera Community Hospital’s notice (PDF) reads. The impacted data, it says, includes names, contact information, dates of birth, Social Security numbers, account credentials, financial account information, treatment and health insurance information, and limited biometric information.Advertisement. Scroll to continue reading. “But not every person had each of those elements impacted, and we have not found any evidence that such information was shared or otherwise released publicly,” the hospital says. In mid-July, the hospital started notifying the potentially impacted individuals of the data breach, and informed the US Department of Health and Human Services (HHS) that 150,810 people were affected. According to Madera Community Hospital, the extortion group that was responsible for the attack and demanded a ransom payment ultimately withdrew its demand, claiming it did not want to harm patients. “We worked with third-party experts to address this event, perform an investigation into the unauthorized activity, and further secure our systems to protect information. We also notified law enforcement,” the hospital says. Related: River Bank Says Hackers Deleted Data Stolen in Ransomware Attack Related: Brinks Home Discloses Data Breach as Hackers Leak Files Related: CareCloud Data Breach Impacts Over 350,000 Related: Semiconductor Firm Analog Devices Discloses Data Breach Written By Ionut Arghire Ionut Arghire is an international correspondent for SecurityWeek. 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(Steve Durbin) Flipboard Reddit Whatsapp Whatsapp Email","https:\u002F\u002Fwww.securityweek.com\u002F150000-impacted-by-madera-community-hospital-data-breach\u002F","https:\u002F\u002Fwww.securityweek.com\u002Fwp-content\u002Fuploads\u002F2024\u002F05\u002Fhealthcare-medical-data-breach-.jpeg","2026-08-04T08:33:45+00:00","2026-08-04T10:00:10.181937+00:00",7,[18,21],{"name":19,"type":20},"Madera Community Hospital","product",{"name":22,"type":23},"extortion group","threat_actor","2e06f76c-d5b9-4f54-9eef-4d3447b10730",{"id":24,"icon":26,"name":27,"slug":28},null,"Breaches","breaches",[30,32,37,42],{"category":31},{"id":24,"icon":26,"name":27,"slug":28},{"category":33},{"id":34,"icon":26,"name":35,"slug":36},"614132b8-5837-4952-b8b5-c6c9a32a1d85","Privacy","privacy",{"category":38},{"id":39,"icon":26,"name":40,"slug":41},"6cbdd207-aaa1-4176-9534-e156b125e917","Nation-state","nation-state",{"category":43},{"id":44,"icon":26,"name":45,"slug":46},"e7b231c8-5f79-4465-8d38-1ef13aea5a14","Threat Intelligence","threat-intelligence",[]]