Data leak at Valorissimo

On 23 January 2026, Valorissimo — the French B2B online marketplace for new-build real estate, a wholly owned subsidiary of Bouygues Immobilier that connects property developers with wealth-management advisors, bankers and other prescribers — was reported to have suffered a data leak affecting its platform users.

The exposed dataset consisted of account and contact details tied to the platform's professional user base. No attacker, intrusion method or precise breach mechanism has been publicly confirmed, and the incident was catalogued by the breach-tracking aggregator bonjourlafuite rather than through a company statement.

The leaked records reportedly included:

• Login / account identifiers
• Email addresses
• First and last names
• Phone numbers
• Postal addresses
• Company affiliations

The number of affected accounts was not disclosed, and Valorissimo has not published any public response or remediation notice. As the exposed fields combine professional identities with direct contact information, the data is well suited to targeted phishing and social-engineering against real estate and financial-advisory professionals. The incident status remains unconfirmed.