The Packers said Tuesday a data breach affected a limited number of people who made credit card transactions during the period.

The Green Bay Packers are warning fans of a serious data breach involving their official online retail store. According to a message to customers, threat actors infiltrated the website late last year, injecting a malicious card skimmer script designed to steal customers' personal and payment information during transactions on packersproshop.com.

The Green Bay Packers Pro Shop website was hit by hackers recently, the team confirmed in a statement sent to NBC 26 on Tuesday.

Packers fans are being asked to keep an eye on their financial accounts and statements this year after the team detected a hack that affected

Some customers who used a debit or credit card on the pro shop website from late September through most of October could be impacted. The Packers say they've sent a notification letter to everyone who may have been affected and those customers have been given the option of three years of complimentary credit monitoring and identity theft protection.