What does DNS hijacking intend to accomplish?

DNS hijacking aims to manipulate the resolution of domain names to misleading or fraudulent IP addresses. By causing a DNS server to respond with incorrect addresses, an attacker can redirect users attempting to access legitimate websites to malicious sites instead. This can lead to various malicious outcomes, such as data theft, phishing, or distributing malware.

Focusing on the other choices, securing a private DNS server does not align with the intent of DNS hijacking, as the practice is inherently malicious and not protective in nature. Blocking all DNS queries would disrupt normal internet activity and is not the primary goal of hijacking; rather, hijacking typically seeks to maintain functionality while directing users to harmful destinations. Changing user passwords without permission falls under the category of unauthorized access or exploitation but does not directly relate to the manipulation of DNS records. Thus, the primary objective of DNS hijacking is to redirect users through malicious manipulation of DNS information.