In today's world, main issues on every girl's mind is about her security and safety. A few years back, women had to face the social system (social media) to protest and warn about sexual harassment. The worst fact in today's world is the increase in cruelty against women. A UN Women-supported study in Delhi found that 95% of women and girls feel unsafe in public. According to various studies, one-third of women and all girls have experienced physical or sexual violence in their lives. As technology has advanced, many systems have evolved to assist women in at-risk situations. If the women find themselves in a dangerous situation, they should set up an automatic detection system that will send them an alert, including the location of the police station, to ensure their safety. This paper proposes a smart security device to help women to be safe during times of utmost danger. This can be done by sensing various factors such as abnormal sounds, body reaction like trembling, GPS and GSM modules which can be sensed using sensor and to provide the alert message. In this paper, we surveyed the existing mechanism for detecting locations, for sending communications and collecting physical parameters of the human body using sensors.