Which of the following attacks primarily targets insecure networks?

Impersonation attacks involve one party pretending to be another, often to gain access to personal data or systems. While this tactic can be effective in various contexts, it does not specifically target insecure networks; it can occur in secured environments as well, making it a broader category of attack rather than one focused on network vulnerabilities.

Watering hole attacks involve compromising a website that is frequently visited by a specific group of users, aiming to infect their systems with malware. This method targets user behavior rather than network security, and while it can exploit vulnerabilities, it does not directly target insecure networks in the same way that evil twin attacks do.

Pretexting is a form of social engineering where an attacker creates a fabricated scenario to obtain personal information from a target. While it is a legitimate threat, it does not pertain specifically to network security issues and can occur in various contexts, making it less relevant to the question regarding network attacks.