The City of Tucson, Arizona suffered a data breach that affected the personal information of more than 123,000 individuals. An unknown attacker breached the city's network and exfiltrated an undisclosed number of files containing sensitive information. The breach exposed the files including information like certain individuals' name, Social Security number, driver's license or state identification number, and passport number. The City notified the potentially impacted individuals whose sensitive personal information were exposed during the incident.