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Vendor Key Leak Puts Data of 238,000 Denver Health Plan Members at Risk
securityweek.comarticle

Vendor Key Leak Puts Data of 238,000 Denver Health Plan Members at Risk

Denver Health Medical Plan is notifying 238,083 members that vendor SquareML leaked an access key on a public website. The key was online from 27 June 2025 until it was revoked on 18 August 2026 and gave read-only access to a database of names, dates of birth, health metrics, eligibility and admission data. DHMP found no evidence of misuse and reset passwords for all accounts with access.

TL;DR A leaked SquareML access key exposed a read-only database holding health data on 238,083 Denver Health Medical Plan members.

Organisations named here

  • Denver Health Medical Plan
  • Health First Colorado
  • leaked access key
  • SquareML
  • third-party vendor breach

Technologies named here

  • SquareML no-code healthcare analytics platform