TCP/IP means Transmission Control Protocol/Internet Protocol. Originally, the two protocols with their set of rules got merged and used for machines to communicate on networks, including the Internet.
TCP/IP defines the way data is communicated on the Internet through end-to-end communications for deciding how such data must be divided into packets, addressed, routed, transferred, and received.
Security for surfing on the Internet must be a concern for everybody. Regular users and businesses making transactions daily could get their information and money badly compromised. Remember that our data have become a gold mine!
The Virtual private network (VPN) is a security protocol to transform a public Internet connection into a private network for protecting data exchanged online. VPN secures Internet connections, provides anonymity and privacy for users.