Maki Building Centers Listed by Interlock Ransomware Group

On October 27, 2025, Maki Building Centers appeared on the leak site of the interlock ransomware group. The Massachusetts-based building materials company, which operates three branches in central Massachusetts with warehouses and manufacturing facilities, may have had its internal files exfiltrated after attackers compromised its systems. Public reporting indicates that company, employee, and customer data are now publicly available.

Reported Details of the Breach

Available reporting describes the incident as a successful ransomware attack in which interlock gained full control of Maki Building Centers’ network. The group claims to have taken both company records and personal information belonging to employees and customers. No exact victim count has been released, and the precise volume or sensitivity of the files remains unclear from public statements. The data was placed on interlock’s leak site on October 27, 2025, following the company’s apparent refusal or inability to meet the attackers’ demands.

Because the breach involves a regional supplier that serves both businesses and individual homeowners, anyone who has purchased lumber, hardware, or related services from Maki in recent years could have records exposed. Employee payroll files, vendor lists, and customer invoices are among the categories typically included in such exfiltrations.

Why This Matters for You and Your Family

When a local business like Maki Building Centers suffers a breach, the impact reaches far beyond the company’s walls. If you or anyone in your household has ever shopped there, worked there, or been listed as a contact on an order, your personal details may now sit in files freely downloadable by anyone. Employee and customer data can include names, addresses, phone numbers, email addresses, and payment information that criminals can use for identity theft, phishing, or targeted scams.