Claimdepot SquareML Data Breach Affects 238K Denver Health Members
Article Content
- •238,083 members affected by the breach at Denver Health Medical Plan.
- •An access key from vendor SquareML was publicly exposed for over a year.
- •No evidence of data misuse has been identified by Denver Health.
Denver Health Medical Plan disclosed a data breach affecting 238,083 members due to a vendor incident involving SquareML. An access key used by SquareML was inadvertently published on a public website on June 27, 2025, and remained accessible for over a year. Denver Health was notified of the breach on August 14, 2026, and the key was deactivated on August 18, 2026. The exposed data included personal and health information such as names, dates of birth, and health metrics, but did not include Social Security numbers or financial information. Denver Health has not found evidence of misuse of the access key. Notification letters were sent to affected individuals, and a hotline was established for inquiries. Additionally, Johns Hopkins Bayview Medical Center reported a separate incident involving AI-related data exposure affecting 3,182 patients.
Ask AI about this cluster
Answers cite the sources they use
Timeline
More articles in this cluster (2)
Following this threat?
Track BASS Medical Group in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.
Free account · no card needed
Common questions
What type of information was exposed?
What steps should affected individuals take?
Was the access key exploited?
Continue Reading
Critical BeyondTrust 9.3 Vulnerability Actively Exploited by Threat Actor A critical vulnerability (CVE-2026-102764) in BeyondTrust Remote Support has been discovered and is actively being exploited by the threat group ARMORY CASTLE, reportedly linked to China. The vulnerability, which has a CVSS score of 9.3, allows unauthenticated attackers to upload files and potentially compromise host… 
Lazarus APT Launches Operation FlashHole Using AI and Post-Quantum Cryptography Kaspersky has identified a cyberespionage campaign, dubbed Operation FlashHole, attributed to the Lazarus APT group, active since July 2025. The campaign has targeted at least three organizations in South Korea's construction, software, and wire-communication sectors. Attack methods include spear-phishing emails…