Existing Technology Module: Zheng et al (2013) present a security visiting guiding subsystem of RFID. This system uses RFID technology, a smart phone, Wi-Fi signals and a map of building in order to track visitors. It can also effective manage objects and accurately track their positions. The outdoor tracking has been extensively developed in the recent decades. There have been a lot of problems surmounting the indoor localizations (Ni et al, 2011). However the SVG technology has been able to effectively handle this issue and track all details. This technology once it has been developed the developers wanted to ensure that it is wholly secure. In order to test this they proposed the attacker model and applied various types of security breaches to see for any vulnerability in this technology. The tests that were conducted ranged from simple types of breaching actions to very intricate types of hacking. They had involved a testing model, which encompasses all the possible security breaches currently known. It was found from this study that this it was a safe method and it had the latest security protocols. The authors have concluded that they can safely meet new clients or people and not be worried about any breaches in security (Zheng et al, 2014).