By the mid 19th century, the skills and techniques used to break simple monoalphabetic substitution ciphers or keyword ciphers were well known between coder breakers. Tools such as frequency analysis were vital to decoding messages, encrypted messages intercepted through Morse code had no chance of staying secure. Messages needed to be encrypted with a stronger mechanism such as a polyalphabetic substitution cipher that could render a normal frequency analysis obsolete.
My first thought of modern communication that required a major change to keep our communication secure was email. Primitive computer messaging had little to no security, and once there was a realization that digital messaging would become popular, the communication programs had to be equipped with the tools that could keep each user’s data safe. These encryption processes had to be security enough to withstand the code breaking technologies now. For this reason stronger encryption systems such AES 3DES have been developed to maintain the user’s data safe. The algorithms we have developed turn any piece of user inputted data such as a password, message, or personal information into a string of characters and send that string through numerous systems until the data reaches whatever the intended recipient is. In way we have created two types of communication, one in which humans communicate with technology and second where one piece of technology communications with another. It is interesting to think about all our modern communication like this because we cannot see the latter form. We cannot also know what happens to our data in route to the receiver, that is why sometimes we take precautions that hopefully secure our data and maintain our privacy. Other times we take risks and our private data can be accessed through some third party technology.