Blog is abridgement of ?web log? and considered as web application in term of writing posted as public web. Those writing usually in reverse order as the newest content firstly seen then followed by the oldest posts. This media is an open source dedicated to the development of blog?s writer. It can be accessed by anybody in the world within its certain topic and the principle of the blog?s writer.

Blog has various functions, can stand as diary, publication of politic campaign to media and company programs. Blog is taken cared by single writer or can also in group. Many weblog have their interaction facility like guest book or comment box. This activity has to be done almost all the time to know how far you taken cared your blog. Now there are ten million blogs can be found and there is probability to increase. From writing in Blog, people can achieve money, and sometimes not in small number therefore some people used this as their main job and popularize the name professional bloggers.

Since blog used to write daily activity of the writer or reflected his point of view bout several topics and in order to provide information, but that also provides information for hacker, identity thief, spy and lot of internet crime. Many secret document or sensitive issue found in blogs. This made some people faired from their job or his blog blockade, been mulcted and even arrested.