Practical packet analysis: Exploring the cybercriminal behind the LINE voice calls

Cybercrimes are emerging trends on the Internet. Free instant communications, like LINE or WhatsApp, bring close to our family and friends around the globe. People in Taiwan use LINE application more frequently than others. This study uses Wireshark to explore the cybercriminal behind the LINE voice calls. Some algorithms are identified to the criminal's IP address by way of LINE voice calls. It will be helpful for Law Enforcement Agencies (LEAs) to prosecute cybercriminals, and bring them to justice.