We use the "IIJ Secure MX Service", an e-mail security service provided by Internet Initiative Japan Inc. (IIJ). According to a report that we received from IIJ, information on emails that have been transmitted/received using that service may have been leaked to outside parties.

According to the report from IIJ, no unauthorized use of customer information has been confirmed at this time. We have also been advised by IIJ that IIJ has already taken measures to prevent unauthorized access to this e-mail system, and that the system is now safe to use.

For details, please refer to the following notice from IIJ.
Notice Regarding the Breach of Customer Information in "IIJ Secure MX Service" (IIJ WEB site)

We will update you as appropriate if we receive further information on this matter.

We sincerely apologize for any inconvenience this may cause to our customers.