Smartphone is one of the technological evolutions that become one of the important things for Indonesian nowadays. By using the Smartphone, variety of work can be done easily, faster and certainly more practical. There are many benefits to be gained from the use of Smartphone, such as ebanking, online shopping, etc. On the contrary, Smartphone usage will lead to negative impact for its users, such as data theft and data misuse. This study aims to identify factors that affect the use of Smartphone by using eight variables constructs, which are Perceive Usefulness, Perceive Ease of Use, Functionality, Perceive Trust, Perceive Privacy, Perceive Security, Social Network and Behavioral Intention. Data were collected by distributing web-based questionnaires to 248 respondents. Structural Equation Modeling (SEM) is used as data analysis method. The result of this study indicates that the factors which have positive affect toward behavioral intention to use Smartphone that will affect the variable actual use of Smartphone are Perceive Usefulness, Perceive Ease of Use, Perceive Trust.

Google is a multinational company in the US that focuses on Internet product and service. To use the various services from Google, the users must own a Google account. In registering process to create a new Google account, the users are asked to create a password to protect the account. The password regulation policy made by Google requires all the users to develop a password for their Google account according to the policy applied. This study aims to analyze the behavior of the users with Google account case study by using 11 construct variable adapted from Protection Motivation Theory (PMT). The data is collected from the Google users that consists of 285 respondents. The data analysis method used in this study is structural equation modelling (SEM). The study result shows that the factor affecting the intention is perceived vulnerability and threat suspensibility.