
According to Maslow's Hierarchy of Needs, "Safety Needs" is high on the top two level when a human being's "Psychological Needs" being satisfied before heading toward next level of "Love", then the fourth level of "Esteem" and the final level of "Self-Actualization". The feeling of security is definitely what people aspire to not only at home but at the working place as well. With this society becoming ever chaotic, we are getting uneasy and feeling unsafe. Therefore, finding a way out to help prevent ourselves and loved ones from violence or the like is the priority here and now. Thanks to the advance of modern technology, every household and every company can hardly do without a PC. On the other hand, less than 1% of PC users have invested on security equipment to cover their "Safety Needs". The reason for our shunning security equipment is that in addition to having an installer to set [
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