Breaches and incidentsBriefReported by a reputable outlet, citing the company

FELG Dent (Polish dental practice software, about 16,000 practices): about 2 million patient records exposed, IDOR claimed

FELG Software confirmed an incident and gave a preliminary estimate of about 2 million patient records (attackers claim 2.4 million).

Disclosed

What happened

  • FELG Software confirmed an incident and gave a preliminary estimate of about 2 million patient records (attackers claim 2.4 million); potentially affected data includes names, PESEL numbers, addresses, medical data and e-prescription, e-sick-leave (e-ZLA) and eWUS eligibility information (Alert Medyczny, citing Sekurak).
  • Root cause: the attackers (“Horus”) claim they used an Insecure Direct Object Reference: from a demo account they reached production data by changing resource identifiers. FELG says it identified the cause but has not released technical detail.
  • Attacker: “Horus” (self-described), demanding a ransom not to publish.
  • Response: prosecutor and UODO notified, forensics, per-practice breach reports and a patient notification tool for clinics.

Sources

This is a brief: a short, sourced summary from our incident tracking. Full advisories add commands to check whether you are affected.