The Piyolog summary covers the DMM Bitcoin incident in which 4,502.9 BTC, worth about 48.2 billion yen at the time, was illicitly transferred from the exchange's wallet on May 31, 2024. Japanese authorities later issued warnings stating that a North Korea-linked cyber group was involved, and the article frames the case as a TraderTraitor-related cryptocurrency theft. The incident led to customer service restrictions, a 55 billion yen funding plan to guarantee customer bitcoin holdings, regulatory scrutiny over risk management and evidence preservation, and plans to transfer customer accounts and assets to SBI VC Trade before DMM Bitcoin exits the business.