Axel Entermedia data breach
Axel Entermedia announced a data breach on Nov 4, 2026 affecting about 1.1 million email addresses, exposing email addresses and names. It happened through a vendor (Arara (email delivery service)). No settlement or compensation has been announced.
Was I affected?
Members of fan club and other sites run by Axel Entermedia whose details were used for the sites' emails. Each site is notifying affected members.
| Announced | Nov 4, 2026 |
|---|---|
| When it happened | Intrusion at email vendor Arara; Arara told Axel Entermedia on November 3, 2026 that data had leaked |
| Country | Japan |
| Email addresses exposed | 1.1 million |
| Data exposed | Email addresses, Names and Other details |
| Through a vendor | Arara (email delivery service) |
| Status | Confirmed by the company or a regulator filing |
What happened
Axel Entermedia, a Japanese company that runs artist fan club and official sites, said that 1,086,098 email addresses (after removing duplicates) leaked after an outsider broke into the email delivery service of Arara, its email contractor. It first announced the leak on November 4, 2026 and confirmed the count in a second notice on November 9. For some sites, names, member numbers and other details registered for emails were also taken. Email contents, passwords and card data were not involved, and no misuse had been confirmed. Each site began notifying affected members on November 9.
What should I do?
- Be wary of emails, texts or calls claiming to come from a fan club, an artist or a card company, and don't open their links or attachments.
- Don't enter passwords or card details for messages about ticket wins, fees, refunds or identity checks.
- If you entered card details, call your card issuer, and change any password you reuse elsewhere.
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Sources
- 委託先メール配信サービスへの不正アクセスに関するお詫びとお知らせ（第2報） (Apology and notice about unauthorized access at our email delivery contractor (second notice)) · Axel Entermedia (in Japanese) · official