University of Colorado Hospital Authority Announces Third-Party Data Breach Following Incident at Diligent Corporation | JD Supra. On January 17, 2023, the University of Colorado Hospital Authority (“UCHealth”) filed notice of a data breach with the U.S. Department of Health and. If you are among the 48,879 individuals who received a data breach letter from UCHealth, it means that your sensitive information was leaked in the recent Diligent Corp. data breach. As we’ve discussed in prior posts , cybercriminals routinely target healthcare providers and related companies in hopes of obtaining information they can use to commit identity theft and other frauds. Thus, as a result of the UCHealth / Diligent data breach, you are now at a significantly increased risk of being the target of identity theft or other frauds. Third-party company: Diligent Corporation.