When a MAC (message authentication code) is used, what happens if an attacker attempts to tamper with the Tag (the MAC) and the ciphertext while in transit? Provide an explanation for why this attack can never succeed since the target's ability to detect a tampered Tag/ciphertext guarantees success.

An attack on a network may be the result of rerouting malicious traffic from one virtual private network to another. An attacker's attack pattern must be figured out before any defence can be implemented. Give an example of a careful measure that comes to mind.

What does a poison packet assault entail? Give two examples of this type of assault.

Need the below questions answered:  1) Suppose that a merchant’s website stores hashed passwords that have not been salted. Describe an attack to obtain passwords that could be prevented using salted passwords. (Remember, hashes cannot be "decrypted")   2) You know that it is generally not a good practice to create your own authentication systems when standard packages are available to you. But for the purposes of learning, you are doing it anyway. You are trying to decide which hashing algorithm to use when salting and hashing user passwords for the webapp you are building. Of the following hashing algorithms, which is best for hashing passwords? What makes your choice the best option for this scenario? SHA512 MD5 Bcrypt SHA256 3) There are several options for password hashing algorithms other than your choice from above. Do a little Internet investigation and discuss an equivalent or better option than your previous choice. Are there any parameters or settings to that algorithm…