RESEARCHER from Digital Forensic Indonesia (DFI), Ruby Alamsyah, pulled out a black box-shaped bag from his office at Prosperity Tower in Kebayoran Baru, South Jakarta. The plastic bag contained an Individual Mobile Subscriber Identity device or IMSI Catcher. “This is similar to the device that was once used by one law enforcement agency as a surveillance tool,” Ruby told Tempo on Thursday afternoon, May 2.

Inside the bag, sever