TriZetto Provider Solutions

TriZetto Provider Solutions (TPS) disclosed a security incident affecting its healthcare provider customers, including OCHIN. The breach occurred on November 1, 2024, but was discovered on October 2, 2025, when suspicious activity was detected. TPS contained the incident by disabling affected users and IPs. An investigation by Mandiant confirmed the vulnerability was remediated. TPS is offering identity monitoring services to affected individuals and assisting providers with regulatory notifications to OCR and state Attorneys General. The incident involved unauthorized access to protected health information.