SEGA Fave arcade network cyberattack

Overview

Following unauthorized access to its servers detected on November 1, SEGA Fave disabled several arcade network services in Japan, including the ALL.Net network and the Aime user authentication system. The outage impacted various titles from SEGA, such as maimai DX and Chunithm, as well as Bandai Namco games like Taiko no Tatsujin and Mobile Suit Gundam Extreme Vs.

While initial investigations by SEGA Fave found no evidence of data leaks or compromised payment information, the disruption expanded to affect player data management, rankings, and software updates. By November 5, the outage caused significant operational issues for arcade centers across Japan. Some machines became unplayable due to expired license authentication, and operators reported financial distress and record-low revenue during holiday periods.

As of November 10, SEGA Fave has announced that there is currently no estimated time for the full resumption of ALL.Net and Aime services. While certain Bandai Namco titles, including Taiko no Tatsujin, Mobile Suit Gundam Extreme Versus 2 Infinite Boost, and The Idolmaster TOURS, have begun a phased, experimental resumption of online play and card usage, SEGA products such as CHUNITHM and maimai deluxe remain offline.

SEGA Fave reiterated that investigations and safety verifications are ongoing. The company clarified that credit card data was not stored on the compromised servers and remains unaffected. A further update is expected around November 12.

Entities

Sega Fave · Bandai Namco · Aime · ALL.Net · Japan

Timeline

1 day ago

[TECHNOLOGY] 2 sources
Sega Fave reports no timeline for arcade service recovery after unauthorized access
Sega Fave remains unable to provide a recovery timeline for its ALL.Net and Aime arcade services following a November 1 unauthorized access incident.
3 days ago

[TECHNOLOGY] 3 sources
Bandai Namco arcade titles resume trial operations after network breach
Bandai Namco arcade games are undergoing trial service resumption following a network breach, though Sega titles remain offline due to ongoing maintenance.
6 days ago

[TECHNOLOGY] 4 sources
Sega ALL.Net network outage impacts Japanese arcade centers
A cyberattack on Sega’s ALL.Net and Aime services has disabled numerous arcade games across Japan, causing significant revenue losses and operational crises for gaming centers.
9 days ago

[TECHNOLOGY] 2 sources
SEGA Fave arcade services offline following cyberattack
A cyberattack on SEGA Fave has disabled ALL.Net and Aime services, disrupting online play for various SEGA and Bandai Namco arcade games in Japan.

Sources

gamebusiness.jp · gamespark.jp · hamusoku.com · inside-games.jp · japan.cnet.com · otakupt.com

This summary has been updated 2 times: see revision history