Change Healthcare Data Breach 2024 Update Date. Updated july 29, 2024 and august 8, 2024) this notice is from change healthcare (chc). Last updated 16 september 2024.

21, 2024, a cybercriminal group calling themselves alphv or blackcat deployed a ransomware attack inside change healthcare’s information technology environments,. The office for civil rights (ocr) is aware that change healthcare, a unit of unitedhealth group (uhg), was impacted by a cybersecurity incident in late february that is.