Yokohama Rubber security incident history
Hacking, data breaches and other security incidents involving Yokohama Rubber, with related coverage.
Incidents: 1 · Most recent
Yokohama Rubber subscriber data leaked in Arara incident
↳ Knock-on damage from the Arara incident · View original incidentImpact: Company names and email addresses of news release and email newsletter subscribers exposed; the official announcement did not disclose the number of records
Unauthorized access to Arara's email distribution service exposed company names and email addresses registered by subscribers to Yokohama Rubber's news releases and email newsletters. Yokohama Rubber was notified of the unauthorized access on October 28, 2026, and suspended email distribution, then received notice on November 3 that its related data had been leaked and issued an announcement.
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