Chick-fil-A reports data breach from credential stuffing attacks

Incident Overview

Chick-fil-A recently reported a data breach resulting from credential stuffing attacks targeting their website and mobile application. The attack occurred between June 17 and June 19, 2026, leading to unauthorized access to some Chick-fil-A One accounts.

Details of the Breach

The breach allowed attackers to potentially access various pieces of customer information, including names, email addresses, Chick-fil-A One membership details, and mobile pay numbers. In some cases, attackers may have accessed customers' birth dates, phone numbers, and addresses if this information was stored in the accounts.

Scope and Impact

Chick-fil-A has not disclosed the total number of affected customers, but it acknowledged that at least 2,182 Texans were impacted. Notification letters were also sent to customers in several states, including Iowa and North Carolina, indicating a wider reach of the breach.

Understanding Credential Stuffing

Credential stuffing is a cyberattack strategy where attackers utilize stolen account credentials to gain unauthorized access to user accounts on various platforms. This tactic capitalizes on users who reuse passwords across multiple sites, making them vulnerable to such attacks. Attackers typically seek to extract personal and financial data for malicious purposes.

Response and Mitigation

In response to the breach, Chick-fil-A conducted an investigation and put measures in place to enhance security. The company emphasizes the importance of using unique passwords and encouraged customers to remain vigilant regarding account security.