CybersecurityWed 28 Oct 2026 · 6 of 10

Data breach at Denver Health Medical Plan exposes 238,000 members' information

Verified · 10/10 supported1 cited · 1 min read

securityweek.com reports that Denver Health Medical Plan (DHMP) notified roughly 238,000 members that their personal and health information may have been compromised . securityweek.com reports that the breach involved third‑party vendor SquareML, which provides a no‑code platform for healthcare analytics . securityweek.com reports that SquareML’s access key was inadvertently leaked on a publicly accessible website on June 27, 2025, and the vendor informed DHMP of the leak on August 14, 2026, with the key revoked on August 18, 2026 . securityweek.com reports that the compromised account was read‑only, meaning the key could not be used to download, export, delete, or change any information . securityweek.com reports that potentially compromised data includes members’ names and health information, and that DHMP is a non‑profit managed‑care organization within the Denver Health and Hospital Authority system, administering Medicaid benefits in Denver and three surrounding counties .

Why it matters. securityweek.com reports that the breach puts the personal and health information of about 238,000 members at risk .

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