Walker Advertising LLC data breach

Clerk's notes

On June 5, 2026, Walker Advertising LLC, a marketing firm operating in the data-intensive advertising sector, reported a data security incident to the Indiana Attorney General. This filing officially acknowledges a breach that initially took place on October 14, 2025, impacting individuals whose information was managed by the company.

The reported exposed data categories include Full Name, Date of Birth, Email Address, Mailing Address, Password or Credential Hash, Phone Number, Purchase and Order History, and Payment Card Information. This array of personal and transactional data could create various risks for affected individuals. The investigation into the incident is currently listed as monitoring, meaning authorities are continuing to oversee the situation.

The exposure of such detailed information carries specific risks. For instance, compromised Full Name, Date of Birth, and Mailing Address could be used in targeted phishing scams or attempts at identity theft. Email Addresses and Password or Credential Hashes could lead to unauthorized access to other online accounts if individuals reuse passwords. Payment Card Information could be exploited for fraudulent transactions, while Phone Numbers might be used for unwanted solicitation.

Companies like Walker Advertising LLC are entrusted with significant volumes of sensitive consumer data, necessitating robust cybersecurity measures. The occurrence of this data breach suggests a potential lapse in the safeguards intended to protect this information. Under state data protection laws, companies are typically required to implement reasonable security protocols to prevent unauthorized access to personal data.

If you have received a data breach notification letter from Walker Advertising LLC, it confirms that your personal data was part of this incident. Understanding the implications of this exposure and your potential rights is an important next step. We offer a free, no-obligation case review for individuals impacted by this reported breach.

If a notification letter about this breach reached you, see every Indiana data breach on file or browse all cases.