p Late last month, restaurant franchise Chipotle Mexican Grill revealed that it had suffered a security breach affecting its POS system.

The company has released an update on that revelation, saying that ‘most’ of its stores in the US were affected by the malware.

Chipotle says the investigation into the breach, which involved both law enforcement and security firms, has been completed.

The data breach was first revealed on April 25, 2017, though details were slight.

In an update, Chipotle has stated that the malware was operating from March 24 to April 18, and that it worked by searching for track data gathered from a bank card’s magnetic stripe.

This data could include things like the cardholder’s name, the card’s number, the verification code, and expiration date — all things that can be used to jeopardize the bank account itself.

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