Detection of Spam Transactions in Blockchain by Graph Analysis. - Robin Michel Kouame; Kai Saito; Hiroyuki Inaba (GCCE, 2022)

Securing SIM Toolkit-Based Mobile Money Applications Against SIM Swap Attacks Using User Location Data. - Chepkwony Caldas Cheruyot; Robin Michel Kouame; Hiroyuki Inaba (GCCE, 2024)