An APK file appears on WhatsApp in the name of a bank or government scheme. One click, and cyber fraudsters gain control of their mobile phones. Surat police have uncovered one such network. According to the police, an investigation into 336 fake APK files revealed access to 31,174 mobile devices and a cyber fraud of approximately ₹125.39 crore through 106,643 debit transactions. Four accused involved in this network have been arrested from a ho…