Confirmed

NTT Docomo halts its online shop after unauthorized access exposed customer data

The carrier suspended Docomo Online Shop and My docomo procedures on November 5.

Leaked on 05 November 2026

Screenshot of the NTT Docomo notice page: ドコモからのお知らせ : 【お詫び】ドコモオンラインショップ、My docomoの緊急メンテナンス実施について/当社サーバーへの不正アクセスによるお客さま情報流出に関するお知らせ（第四報：11月9日午後5時30分時点） | お知らせ | — Screenshot of the NTT Docomo notice “ドコモからのお知らせ : 【お詫び】ドコモオンラインショップ、My docomoの緊急メンテナンス実施について/当社サーバーへの不正アクセスによるお客さま情報流出に関するお知らせ（”, captured 09 Nov 2026 12:14 UTC. Source: NTT Docomo notice

NTT Docomo announced an emergency suspension of its Docomo Online Shop and My docomo services on November 5 after unauthorized access, Hackmanac (@H4ckmanac) reported on X.

Hackmanac @H4ckmanac

🚨Cyber Alert ‼️ 🇯🇵Japan - 𝗡𝗧𝗧 𝗗𝗢𝗖𝗢𝗠𝗢 On November 5, 2026, NTT DOCOMO announced the emergency suspension of its Docomo Online Shop and My docomo services following suspected unauthorized external access to its servers. The disruption began at approximately 1:05 a.m. on November 5 and remained ongoing as of 9:00 a.m. The company stated that it had identified a high likelihood of unauthorized access from an external source and proactively shut down the affected services to investigate the incident. The suspension disrupted various customer procedures and account management operations through both platforms. For more insights into the latest cyberattacks worldwide, visit https://t.co/eB7qgxKFAa

237 likes · 91 reposts · counts as of 09 Nov 2026, 12:49 UTC

— Hackmanac (@H4ckmanac) November 5, 2026

Leakly track record

Docomo's own notices describe the emergency maintenance and a leak of customer information caused by unauthorized access to its servers, with updates continuing through November 9.

Docomo confirmed the incident. It has not disclosed the number of affected customers.

Sources

Status key: how we label leaks · Corrections · Contact