The Walmart Canada Online Photocentre is unavailable because of a “potential compromise of customer credit card data” on its photo website.

Walmart says it was recently informed of the potential security breach.

The website says they immediately launched an investigation and will be contacting customers who may be impacted.

The company says there is no reason to believe that, or in-store transactions are affected.

Walmart Canada’s photocentre customers are urged to monitor their card transactions closely and immediately alert their financial institution about any unauthorized charges.

As a precaution, Walmart has disabled the Walmart Canada Photocentre website and mobile applications.

For questions or concerns, customers can contact Walmart Customer Service at 1-800-328-0402 and select option 1.