Sega Fave server breach disrupts online arcade services in Japan
Unauthorised access by an outside party to Sega Fave's ALL.Net and Aime servers led to the suspension of related services from 1 November. Online play, card authentication and access to game progress data at Japanese arcades were disrupted, while the initial investigation found no evidence of customer or business partner information being leaked. Eligible Bandai Namco games resumed operations on a trial basis on 8 November, but as of 10 November, no date had been set for restoring online services for Sega games.
Key facts
- Affected organisation
- Sega Fave
- Incident type
- Hacking & intrusion
- Occurred / detected
- 2026-11-01
- Scale of damage
- Suspension of ALL.Net- and Aime-based services at Japanese arcades, including online play and card authentication
- Cause / method
- Unauthorised access by an outside party to servers related to ALL.Net and Aime
- Location
- Japan
Timeline
- Services related to ALL.Net and Aime were suspended in response to unauthorised server access.
- Sega Fave announced the unauthorised server access and said its initial investigation had found no evidence of customer or business partner information being leaked.
- The continuing service suspension affected arcade operations, exhibits at AMUSEMENT EXPO and some tournaments.
- Some functions were restored, and eligible Bandai Namco games resumed operations on a trial basis.
- Online services for Sega games remained suspended, with no date set for their resumption.
Also affected by this incident
Sega Fave server breach disrupts online features of Bandai games
↳ Knock-on damage from the Sega Fave incident · View original incidentImpact: Disruption of online features and player card functionality for arcade games including Taiko no Tatsujin
A breach of Sega Fave's ALL.Net-related servers disrupted the online features of Bandai-affiliated arcade games, including Taiko no Tatsujin. The suspension of connected services also affected player card functionality. Bandai Namco-affiliated games began trial operations on 8 November, and the initial investigation found no evidence of customer data leakage.
Related reports: 4 · last report →
18 related reports
- 【重要】当社サーバーへの不正アクセスに関するお詫びとお知らせ（SEGA FAVE CORPORATION announces that certain of its servers were accessed without authorization by a third party.）
- SEGA Confirms Cyberattack, Shuts Down ALL.Net and Aime Services
- 当社サーバーへの不正アクセスに関するお詫びとお知らせ
- 「ALL.Net」「Aime」，不正アクセスへの対応のため各種サービスを停止
- SEGA arcade network ALL.Net and Aime stay offline after unauthorized access, hitting CHUNITHM, maimai and Taiko no Tatsujin
- セガ フェイブが「ALL.Net」「Aime」関連サーバーへの不正アクセスを確認。初期調査段階ではユーザーや取引先に関する情報の流出は確認されず
- SEGA’s major arcade network services down after subsidiary suffers server breach
- Sega Fave suspends ALL.Net and Aime after unauthorized server access
- セガ フェイブの「ALL. Net」に不正アクセス、「太鼓の達人」「チュウニズム」などのアーケードゲームに影響
- SEGA shuts down arcade services after unauthorized server access
- Sega suspends arcade network services following unauthorized server access
- Sega Arcade Outage: ALL.Net and Aime Still Down After Hack, No Restore Date Yet
- ゲーセンに真っ暗な画面ずらり……セガ系システムの障害が長期化、復旧めど立たず 原因は不正アクセス
- Sega Arcade Network Outage Drags On After Unauthorized Access
- 「ALL․Net」「Aime」メンテナンスについての続報が発表。『太鼓の達人』や『ガンダムEXVS.2』などバンダイナムコの対象タイトルが試験的に稼働を再開
- Japanese arcades suffer week-long blackout following Sega server hack
- Sega hacked, Mario Kart down in Japanese arcades
- ゲーセン不正アクセス問題、ALL.Net/Aime依然として再開の目処立たず―セガ製品『maimai』『チュウニズム』などオンライン停止から10日（Game Spark）
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.