Which of the following attacks primarily targets insecure networks?

Impersonation involves pretending to be another person or entity to gain unauthorized access to information or systems. While it can occur in various contexts, it is not specifically focused on network vulnerabilities and does not inherently target insecure networks in the same manner as evil twin attacks.

Watering hole attacks involve compromising a website that is frequented by the target, with the goal of infecting visitors with malware. This method does not specifically target network insecurity; rather, it focuses on exploiting vulnerabilities in web technologies and user behavior.

Pretexting is a form of social engineering where an attacker creates a fabricated scenario to obtain sensitive information from a target. Although it can involve deception, it does not directly relate to the security of networks and thus does not specifically target insecure networks like an evil twin attack does.