... stealing $130,000 (around ¥15 million) worth of cryptocurrency after hacking the Monappy social media network and Monacoin web-based wallet.
source https://www.google.com/url?rct=j&sa=t&url=https://brica.de/alerts/alert/public/1250983/18-year-old-arrested-in-japan-for-stealing-130k-in-cryptocurrency/&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNEcMu6LhmNYwBPtj1LSgDWQozUu6A