SEGA’s arcade network services in Japan remain disrupted more than ten days after unauthorized access to company servers forced the suspension of ALL.Net and Aime. As of November 10, 2026, SEGA Fave had not announced a restoration timetable for its affected arcade games, including maimai, CHUNITHM and Initial D The Arcade.
The extended outage follows a security incident that SEGA publicly disclosed on November 2. The company confirmed that an unauthorized third party had accessed internal servers associated with ALL.Net, its network infrastructure for arcade games, and Aime, the IC card service used to access player data and supported gameplay features.
SEGA suspended the affected services at 3 p.m. Japan Standard Time on November 1 while investigating the intrusion and checking the security of its systems.
The November 10 update from the official ALL.Net service information account confirmed that restoration efforts were continuing but that no estimated reopening date was available. Another status announcement is scheduled for approximately 9 a.m. Japan time on November 12.
The disruption affects several services that Japanese arcade players rely on. SEGA’s original announcement identified online gameplay for ALL.Net-compatible titles, Aime card functionality, game-specific .NET services and arcade location information as unavailable.
Additional affected services include PrizeON gameplay, SEGA Lucky Kuji Online and new SEGA ID registrations. The exact impact varies between games, with some arcade machines unable to provide their normal gameplay experience without access to the network.
Among SEGA’s affected titles are popular rhythm games maimai and CHUNITHM, alongside the racing game Initial D The Arcade. Players who rely on Aime cards for supported features have also been affected by the continued service interruption.
The incident extends beyond SEGA’s own games because other manufacturers also use ALL.Net infrastructure.
Bandai Namco titles, including Taiko no Tatsujin and Mobile Suit Gundam Extreme Versus 2: Infinite Boost, were also disrupted. However, selected Bandai Namco games began trial restoration on November 8 after some network functionality was recovered.
That partial recovery of Bandai Namco arcade services allowed online functionality and card-based gameplay to return for certain supported titles, even as SEGA’s own affected games remained under maintenance.
The difference in recovery progress means that the outage is no longer affecting every game connected to ALL.Net in the same way. Individual arcade titles may have different availability depending on the services they require and whether their publisher has resumed operations.
SEGA has also addressed concerns about possible information exposure following the unauthorized access.
In its November 2 statement, SEGA Fave said its initial investigation had found no evidence that customer or business partner information had been extracted during the incident. The company also confirmed that payment information, including credit card details, was maintained separately from the affected internal servers and had not been compromised through this intrusion.
Those findings are preliminary. SEGA has not publicly identified the attacker or explained how the servers were accessed, and its investigation into the incident’s scope remains ongoing.
The company has stated that the investigation and security verification will require additional time. It intends to announce service restoration through its official websites once the necessary checks have been completed and a decision to resume operations has been made.
For players, the immediate concern remains the availability of individual arcade games and their associated online services. The incident demonstrates how a disruption to shared network infrastructure can affect multiple arcade publishers simultaneously, even when their games operate on separate physical machines.
With selected Bandai Namco titles already undergoing trial restoration, attention now turns to SEGA’s November 12 status update for any indication of when ALL.Net and Aime functionality might return more broadly.
