United Super Markets Holdings security incident history
Hacking, data breaches and other security incidents involving United Super Markets Holdings, with related coverage.
Incidents: 1 · Most recent
Japan's USMH warns of possible data leak affecting 64,003 shopping app accounts
Impact: Possible leak of names and email addresses associated with 64,003 accounts
Unauthorised access to the Scan＆Go ignica shopping app system of Japan's United Super Markets Holdings raised the possibility that names and email addresses associated with 64,003 accounts had been leaked. The compromised system contained a file holding this information, and the company said on 12 November 2026 that although no actual external exfiltration had been confirmed, it could not rule out the possibility and was investigating.
Related reports: 4 →