How can you stop man in the middle attack over an insecure communication line without using any kind of encryption ?

Question

Accepted Answer

It is not possible to stop man in the middle attack over an insecure communication line without using any kind of encryption.

Without encryption, the communication line is inherently insecure and vulnerable to man-in-the-middle attacks.
One possible solution is to use a secure communication line, such as a VPN or a dedicated private network.
Another solution is to use digital signatures to verify the authenticity of the communication.
However, these solutions are not foolproof and can still be vulnerable to attacks.
Encryption is the most effective way to prevent man-in-the-middle attacks over an insecure communication line.

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