Dollar Tree hit by third-party data breach impacting 2 million people. Discount store chain Dollar Tree was impacted by a third-party data breach affecting 1,977,486 people after the hack of service provider Zeroed-In Technologies. Dollar Tree is a discount retail company that operates the Dollar Tree and Family Dollar stores in 23,000 locations in the United States and Canada. According to a data breach notification shared with the Maine Attorney General , Dollar Tree’s service provider, Zeroed-In, suffered a security incident between August 7 and 8, 2023. Third-party company: Zeroed-In Technologies.