The use of social media in Indonesia has increased very rapidly in 2018 compared to the previous year. This makes a lot of social media made by the children of the nation appear, one of which is Paziim. Socializing on the internet is very easy to leak personal data. There are three aspects that can be utilized on online social networks (OSN) in the disclosure of private data to the public, namely the strength of the relationship (strong or weak), the type of relationship and the characteristics of one's habits. Mobile forensics is needed to analyze digital evidence on social media applications installed on Android smartphones. Indonesia through the National Standardization Agency (BSN) also issued standards related to digital forensics. Standards which are derived from ISO / IEC regulate Security Techniques - Guidelines for the Identification, Collection, Acquisition and Preservation of Digital Evidence. This standardization is known as SNI ISO / IEC 27037: 2014. From the results of cell phone forensic analysis on the Paziim application, the results found the username, coordinates, device models, and operators used by users in SQLite Web_Data and OneSignal.xml files

Air pollution is not a simple problem, many adverse effects arise due to changes in air quality both on the health of humans and other living things. Therefore an air quality monitoring system needs to be carried out to help people know the quality of the air around them. Air quality control has been regulated in Peraturan Pemerintah No. 41 Tahun 1999 concerning air pollution control, as a benchmark for air quality based on measurements of SO 2 , NO 2 , SPM, pH, Ozone, Greenhouse Gas, PM10, PM2.5 levels in the air. An air quality monitoring system is very much needed especially an internet-based system. In this research an air quality monitoring system has been created using the OpenHAB platform that utilizes data sources from Social IoTs. This research as a form of a proposed system that can display the degree of air quality in various cities in Indonesia.