Chicago Candidate’s Website Exposed Data on About 1.5 Million Residents
Chicago mayoral candidate George Cardenas' campaign website inadvertently exposed the home addresses, birth years, and voting histories of approximately 1.5 million Chicago residents due to security vulnerabilities. The data, which included information on prominent figures and judges, was accessible via…
Chicago, IL, October 29, 2026 —
The campaign website of Chicago mayoral candidate George Cardenas exposed home addresses, birth years and voting histories for approximately 1.5 million Chicago residents, according to the information provided about the incident. The data was accessible through the website before it was taken down after the campaign received notification.
The exposure was attributed to security vulnerabilities. The available information does not describe the vulnerabilities, how long the data could be accessed, or who discovered and reported the issue. It also does not specify when the website was taken down or whether the information was accessed or copied by anyone.
The records included information about prominent figures and judges, but no individuals are identified in the summary. It does not detail what other types of information, if any, were exposed, or explain how the voting-history information was presented.
The campaign’s response beyond taking the website down after notification was not provided. There is no information in the summary about whether the campaign notified affected residents, contacted authorities, or arranged for an independent review. The status of the website and any subsequent steps are also not specified.
The available account does not provide details about the technical cause of the exposure or say whether the vulnerabilities have been fixed. It also does not identify the source of the estimate of approximately 1.5 million residents. Those details remain unreported in the information provided.
Story summarized from the original created by Andrew Adams, Illinois Answers Project and Alex Nitkin, Illinois Answers Project on blockclubchicago.org, see more information here.
