It can be seen that security problems have been increasing in the proportion of all problems by 3.57 percent from the year 2009 to the year 2011. Some workers in informal sector don't have employers to take responsibility for their welfare. Though some have employers, they were exploited by employers trying to avoid paying their welfare budget in order to reduce the operation cost. And look at some of the work is in a short period of time only, the workers have not been protected by the Labour Law in wages, unfair and welfare of workers.