Bandai Namco, BANDAI SPIRITS Report 346,247 Records Leaked
Email addresses and internal Bandai Namco ID identifiers were exposed after unauthorized access to contractor Yumemiru Link, the companies said.
Bandai Namco Entertainment and BANDAI SPIRITS announced on October 27, 2026 that 346,247 records, including email addresses registered to THE GUNDAM BASE MEMBERS, were leaked, according to news.denfaminicogamer.jp.
The leaked data consists of email addresses and internal identifiers used to manage Bandai Namco ID. Names, addresses, purchase histories, login passwords and credit card information were not included, the companies said.
The breach stemmed from unauthorized access to Yumemiru Link, the contractor handling email services for Bandai Namco ID. On October 26, Yumemiru Link reported traces of unauthorized access and information retrieval in its service environment.
In response, the companies immediately halted the email delivery service for the affected THE GUNDAM BASE MEMBERS. The matter was reported to Japan's Personal Information Protection Commission on October 27.
At the time of the announcement, no secondary damage from misuse of personal information had been confirmed. Bandai Namco ID and THE GUNDAM BASE MEMBERS services remain usable.
Quick answers
What data was leaked in the THE GUNDAM BASE MEMBERS breach?
Email addresses and internal identifiers used to manage Bandai Namco ID were leaked. Names, addresses, purchase histories, login passwords and credit card information were not included.
Can I still use Bandai Namco ID and THE GUNDAM BASE MEMBERS?
Yes. Both services remain usable, according to the announcement.