Transmission control protocol is a single path per connection in spite of that unite paths often exist between end points. When the data has been transmitted through the connection with multipath TCP and it is lost then the data is transmitted with normal TCP which is more vulnerable to the attacks. The survey made in this paper proved that most of the security attacks like IP source route, Routing Information Protocol etc can be overcome when we send the data through the option enabled with multipath TCP as the data flows in multiple paths simultaneously thus increasing the utilization of the resources by the applications that are based on the internet. It is been observed that through the study made in this paper that the throughput of the application can be improved when the connection is established through Multipath TCP compared to normal TCP.