TwitCasting suspended after unauthorized access to servers

Moi, the Tokyo Stock Exchange Growth-listed operator of the live-streaming service TwitCasting, said on October 28 that it found traces of unauthorized third-party access to the service's servers. It suspended TwitCasting from around 10:40 a.m. that day and expects recovery to take "considerable time."

According to the company, it detected a system anomaly at about 10:30 a.m. and then found evidence of an intrusion from outside. It immediately took emergency measures, including cutting off the affected network. The service was then stopped to prevent further damage and allow a detailed investigation. An in-house specialist team is leading the work to determine the scope of the impact.

What is still unknown

Moi has not yet disclosed the details of the incident, its cause or when service will resume. It says it will announce these once confirmed, and that it will restart TwitCasting only after thoroughly verifying its safety. The impact on the company's earnings is described as "under review."

The corporate website is also down. For the time being, Moi will publish investigation progress and new findings through its official X account and the Tokyo Stock Exchange's TDnet timely disclosure system.

Why it matters

TwitCasting lets ordinary users stream and watch live video from smartphones and PCs. Its cumulative registered users exceed 40 million, making it one of the largest live-streaming services in Japan. An extended outage therefore affects a very large community of streamers and viewers.

The incident adds to a run of recent unauthorized-access cases at Japanese companies that have forced service suspensions. Users should watch the official channels for updates, as the company has so far not said what, if any, user data may have been involved.