Workman data breach
Workman announced a data breach on Nov 4, 2026 affecting about 1.4 million email addresses, exposing email addresses. It happened through a vendor (Arara (email delivery service)). No settlement or compensation has been announced.
Was I affected?
Subscribers to the Workman online store email newsletter.
| Announced | Nov 4, 2026 |
|---|---|
| When it happened | Intrusion at email vendor Arara between October 28 and 31, 2026; Arara told Workman on November 2 that addresses had been taken |
| Country | Japan |
| Email addresses exposed | 1.4 million |
| Data exposed | Email addresses |
| Through a vendor | Arara (email delivery service) |
| Status | Confirmed by the company or a regulator filing |
What happened
Japanese workwear and outdoor clothing chain Workman said on November 4, 2026 that up to about 1.45 million email addresses of subscribers to its online store newsletter leaked after an outsider broke into Arara, the company that sent the newsletter. Workman stopped sending through Arara when Arara first reported the intrusion on October 28 and was told on November 2 that the addresses had been taken; the figure may change as the review continues. Names, home addresses, phone numbers and card data were not stored on the affected servers, and order notices and app notifications use a different system.
What should I do?
- Be wary of emails claiming to come from Workman or Arara, and don't open their links or attachments.
- Delete emails from news@arara.com or with subjects asking you to confirm your usage or statement.
- Check sales and points in the official Workman app or site rather than through email links.
Check the other services you use →
Sources
- アララ社の不正アクセスによるワークマンオンラインストアメールマガジン 会員様メールアドレスの流出に関するお詫びとお願い (Apology and request about the leak of Workman online store newsletter members' email addresses caused by unauthorized access at Arara) · Workman (in Japanese) · official
- メール配信サービスへの不正アクセスによるメールアドレスの漏えいの可能性に関するお詫びとお知らせ (Apology and notice about a possible email address leak caused by unauthorized access at an email delivery service) · Workman (TSE filing) (in Japanese) · official
- ワークマン、メールアドレス最大約145万件が流出か 不正アクセス被害により · FASHIONSNAP (in Japanese) · news