To deliver services to the public, the government needs to communicate with the resident. The easiest way to communicate without boundary is by using social media. This concept brings messenger applications such as Line, Whatsapp, and Telegram as a communication media for a smart city. However, of those three applications, which one is the safest to use? There are various threats such as cybercrime and identity fraud which make the government must choose the most appropriate application that can be applied as public service media. In this study the authors analyze that three application (Line, WhatsApp, and Telegram) in the most popular operating system, Android and iOS to assess which messenger application that has non repudiation characteristic – it means we should know the origin of data about who send the message to prevent an identity fraud in the development of e-government system in smart city. This research analyzed messenger storage location to get the desired data and perform further analysis into forensics analysis software. From this research WhatsApp messenger on every OS platform has the best performance. WhatsApp not only identifies user’s id but also their phone number like Telegram Messenger. Also, WhatsApp has no encryption on their conversation data that make the examiner easier to solve a case on WhatsApp than Telegram. WhatsApp also manages their media data well, all media have names registered in the database, have an extension and neatly organized in the media folder.

Original languageEnglish
Pages (from-to)6542-6557
Number of pages16
JournalJournal of Theoretical and Applied Information Technology
Issue number19
Publication statusPublished - 15 Oct 2018


  • Identity fraud
  • Internet messenger
  • Smart city


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