CCTV, symbolizes close circuit television, often becomes an option for people to watch activities in a room or building. Mostly, it’s placed in variety store to observe the visitors for them to prevent any thief to steal anything from their racks. Besides, it also might be placed in school and office to observe the behavior of students and employee. Whatever the objective of the installation, people usually thing until this system could be a total guarantee for their security level. Unfortunately, this opinion is wrong since CCTV camera also has some drawbacks as well.