The City of Philadelphia reports that a cyberattack resulted in a data breach that exposed the City's email accounts. The City of Philadelphia said that all potentially affected email accounts are the subject of a thorough manual and programmatic assessment. Each person's exposure to information varies, but it may contain limited financial data, such as claims information, medical information, and demographic data like name, address, date of birth, social security number, and other contact details. Along with adding more administrative and technological security measures, the City is also evaluating its current rules and procedures. Additionally, it alerts pertinent authorities and agencies, such as the U.S. Department of Health and Human Services.

The Vermont Office of the Attorney General reported a data breach involving the City of Philadelphia on July 8, 2024. The breach occurred between May 26, 2023, and July 28, 2023, involving unauthorized access to certain City email accounts, though it has not been confirmed if any information was actually accessed. Approximately 3 Rhode Island residents may have been affected.

The Maine Office of the Attorney General reported a data breach incident involving the City of Philadelphia on June 11, 2021. The breach, discovered on May 18, 2021, was due to a phishing attack that led to unauthorized access to employee email accounts, potentially affecting four Maine residents. Compromised information included names, Social Security numbers, and driver's license/state ID numbers.