News Release

Apr. 23, 2025 JPXTSEOSETOCOMJPXIJPX-RJSCC Notice Regarding Potential Leak of Email Information (Update)

Japan Exchange Group, Inc. and its subsidiaries (hereinafter, “our group”) made an announcement on April 15, 2025 titled "Notice Regarding Potential Leak of Email Information" concerning a cyberattack by a third party on the email security service "IIJ Secure MX Service," which is used by our group and provided by Internet Initiative Japan Inc. (hereinafter referred to as "IIJ"). We announced the possibility of some of our email information being leaked.

After conducting an investigation in cooperation with IIJ, we have confirmed that none of our email information has been leaked.

We pay full attention to information security, including preventing unauthorized access, and will continue to strengthen our information security measures.