smartphone is one of the most wonderful inventions of science.It has added a new dimention to our life and to communication system.At present the popularityof smartphone is increasing.Many companies are also being set up for selling this.
Everyone has a mobile phone..A 10-15 years old boy and girl has a mobile phone..They do not need it but they has a phone..
They do not know properly how to use it.In every smartphone has a internet connection..
Today people abuse it.There are some people like "Black Hat Hacker" they hack your details and abuse it..They can also blackmail the user..So we should be alert by using it..