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Abstract
Cyber crime is increasing at an alarming rate, to keep our data secure from intruders during transmission over the internet safety measures have to be taken. In this paper a system has been proposed having three different GUI for client, server and hacker. System will ensure the integrity of the data is maintained during transmission and any changes made to the data would be detected with difference in the checksum calculated at sender’s and receiver’s side. When intruder is able to intercept the file and make changes, modifications can be detected at the client side when it calculates the checksum using SHA256, implementation is done using C#.