Submission of Report to the Ministry of Internal Affairs and Communications Dated July 1, 2024

LY Corporation today submitted a report to Japan’s Ministry of Internal Affairs and Communications (“MIC”) in response to the administrative guidance received from the MIC on March 5 and April 16, 2024.

We will continue to accelerate measures on the fundamental review of safety management measures and subcontractor management as well as strengthening of countermeasures; essential review and reinforcement of Group-wide security governance, including the parent company; and thorough customer support through appropriate information disclosures.

We will endeavor to reestablish the trust of all, making every effort to ensure that our users and relevant parties can utilize our services with confidence and peace of mind.

Measures to prevent recurrence, progress made, and other information are disclosed on a dedicated webpage.
Link: https://www.lycorp.co.jp/en/privacy-security/recurrence-prevention/

Please check the following pages for a summary of the report and supplementary material submitted to the MIC.

• Report summary (Report Submitted on July 1 in Response to MIC's Administrative Guidance on March 5 and April 16, 2024 (Summary))
  Link:https://www.lycorp.co.jp/en/news/2024/20240701_appendix1_en.pdf

• Supplementary material (Future Policies and Plans Regarding the Outsourcing Relationship with NAVER Corporation)
  Link:https://www.lycorp.co.jp/en/news/2024/20240701_appendix2_en.pdf

Reference
MIC (dated March 5, 2024): Administrative Guidance for LY Corporation on Protecting the Secrecy of Communications and Ensuring Rigorous Cybersecurity Measures (Japanese only)
https://www.soumu.go.jp/menu_news/s-news/01kiban18_01000224.html

MIC (dated April 16, 2024): Administrative Guidance for LY Corporation on Protecting the Secrecy of Communications and Ensuring Thorough and Rigorous Cybersecurity Measures (Japanese only)
https://www.soumu.go.jp/menu_news/s-news/01kiban18_01000230.html

LY Corporation (dated April 1, 2024): Submission of Report to Ministry of Internal Affairs and Communications and Opening of Dedicated Incident Page
https://www.lycorp.co.jp/en/news/announcements/007865/

Unless otherwise specified, English-language documents are prepared solely for the convenience of non-Japanese speakers. If there is any inconsistency between the English-language documents and the Japanese-language documents, the Japanese-language documents will prevail.