5.88 million customers affected in data leak at Techni-Contact

On 27 January 2026, Techni-Contact — a Boulogne-Billancourt-based B2B online marketplace for industrial and professional equipment, used by hundreds of thousands of companies and public bodies in France — was reported as the victim of a confirmed customer data leak.

According to the breach-tracker reporting, a database extracted from the platform circulated containing roughly 5.88 million records (lines), tied to the marketplace's customer base. The leak concerns the platform's clientele rather than catalog or supplier data.

Based on the published descriptions, the exposed corpus relates to customer account and contact information typical of an e-commerce platform:

• Customer names and account identifiers
• Email addresses
• Phone numbers
• Postal / billing addresses and company details

The attack vector has not been publicly confirmed, and the figure of ~5.88 million refers to the number of records (lines) in the circulating corpus rather than a verified count of distinct individuals. As of reporting, there has been no public statement from Techni-Contact detailing the cause, the exact scope, or remediation, so the status of the incident remains unknown.