Third-party cyber-forensic specialists hired to investigate the security incident determined that unauthorized actors had gained access to the DMG network between July 12, 2021, and July 13, 2021, and that it was they who had caused the outage.
The cyber-attack, which took place on July 13, caused a network outage at DMG. For some patients, there is a chance that their Social Security number may also have been compromised.
Patient information that may have been accessed by the hackers includes names, addresses, dates of birth, diagnosis codes, information on medical procedures, and treatment dates. On Monday, DMG announced that it would be mailing letters to 600,000 patients to warn them of the potential threat to their data's security. The largest independent group of physicians in Illinois is notifying hundreds of thousands of patients that their personal information may have been exposed.ĭuPage Medical Group ( DMG) said that patient data could have been compromised when its computer network was hacked last month.