40 Chipotle Mexican restaurants in Massachusetts may have been impacted by a nationwide computer data breach.

According to CBS Boston, the Mexican restaurant chain says that credit card information, including the cardholder’s name, number, and expiration date may have been intercepted.

The breaches all took place between March and April of 2017.

Chipotle says that they have removed the software that caused the problem, but are continuing to resolve security issues.

The company stated, "During the investigation we removed the malware, and we continue to work with cyber security firms to evaluate ways to enhance our security measures. In addition, we continue to support law enforcement’s investigation and are working with the payment card networks so that the banks that issue payment cards can be made aware and initiate heightened monitoring."

The company says that customers who used a credit or a debit card in one of their locations during the March through April time frame should check their bank or credit card statements. All suspicious activity on any account needs to be reported to the card issuer quickly.

A complete list of the affected restaurants is available on the Chipotle company’s website.