Answer:
designing the computer network
Explanation:
The already-long problem on hacking and other security-related cases necessitates for the application builders to check the data received from unknown sources. To further strengthen the security, even data received from known sources also need to be check as these may also contain harmful viruses creating critical problem to the application.
Answer:
DNS poisoning
Explanation:
This type of attack is known as DNS poisoning it is a very common attack that focuses on trying to redirect users of the site that has been attacked towards fake servers. These fake servers belong to the attackers and are used to collect the user's private data, which can then be used by the attackers for a wide range of malicious acts. Aside from stealing user information, this malicious data travels alongside regular user data allowing it to infect various servers easily.