Chicago-based Cook County Health wrote in an October notice that it stopped sharing data with Perry Johnson & Associates and severed the partnership in July upon learning about the cybersecurity incident.
An unauthorized party had accessed PJ&A’s systems containing Cook County Health patient data in April, the health system said. Cook County Health said it received a list of affected patients from the vendor Oct. 9 and planned to start notifying them soon.
“CCH is one of many organizations impacted by the PJ&A data security incident,” the health system wrote. “No CCH systems or servers were accessed during this incident.”
PJ&A did not respond to a request from Becker’s for comment. The news was first reported Oct. 13 by DataBreaches.net.
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