What is a domain attack?

A domain attack refers specifically to attacks aimed at domain name servers (DNS). By targeting DNS, an attacker can manipulate the way traffic is directed on the internet. This could involve redirecting users from legitimate websites to malicious ones, allowing the attacker to impersonate a legitimate entity, conduct phishing attacks, or install malware on visitors' systems.

Understanding this concept is vital as DNS plays a central role in how the internet functions. When attackers can control the DNS, they gain significant leverage over online communications and resource accessibility. This type of attack is particularly effective because it can go unnoticed by users who may not be aware that they are being led to a fraudulent site.

The other options involve different concepts related to attacks and cybersecurity issues but do not specifically represent what a domain attack is defined as.