VPN is actually an abbreviated term of virtual private network, and its primary function is to extend or broaden a private network all over or across a public network. To become more specific, the term VPN is actually a designed technology that can maintain the confidential of the people in the online world and can also protect the people’s activities; and this is actually the answer to the request of the people to have online privacy. The virtual private network basically permits, allows and enables the users to receive or obtain and send information or data all over the shared public networks as though their devices are connected to a private network in a direct manner. A VPN system can be classified in various ways, such as by the type of topology of connections such as network to network or site to site; by the number of simultaneous or concurrent connections; by the OSI or open systems interconnection layer that the system may present or show to the connecting network; by the different levels of security they may provide to their users; by their tunnelling protocol used to runnel the traffic; and by the termination point location of the tunnel such as on the network-provider edge or customer edge. Some of the common functions of the security model of a virtual private network or VPN includes message integrity which can help detect any occurrences or instances of tampering with the messages that are being transmitted; confidentiality in which the attacker or the unauthorized users would only see the data that are encrypted; and sender authentication that can prevent the users that are unauthorized to have access with the VPN system. The reason as to why people chose to install and use VPN in their mobile devices is because it can provide them with lots of advantages or benefits, such as ; the ability to enhanced their security because their data are all secured and encrypted; the ability to remotely access the information everywhere they may go thus can improve and increase productivity; the ability to have complete anonymity while browsing the web; the ability to change the IP or internet protocol address; the ability to have access in blocked websites and bypassing filters in the internet; and the ability to share files or data for an extended period of time.
There are definitely a lot of VPN providers all over the world, and the fastest, the most reliable and the best VPN product is developed by the company named as Virtual Shield. The primary purpose of the Virtual Shield is not just to provide protection to their client’s data online but also to help them save money by obtaining or gaining better deals, and that also include defeating any censorship. The VPN system that they offer is in application form, which can be downloaded by their clients or customers on their iPhone, iPad, Mac, Android and Chrome devices. The people who wants to learn more about their product and wants to place an order can do so online and that is through their website.