The AI affirms that the suggested answer is correct.
The correct answer is D. endpoint.
Reasoning: Phishing attacks primarily target end-users via their devices (endpoints) such as computers, smartphones, or tablets. The goal is to trick the user into revealing sensitive information (credentials, financial data, etc.) or installing malware. The endpoint is the weakest link because it relies on human judgment, which can be easily manipulated through social engineering tactics.
Reasons for not choosing other options:

A. perimeter firewall: While firewalls are essential security components, they are not the direct target of phishing attacks. Phishing aims to bypass these security measures by targeting the human element.
B. IPS (Intrusion Prevention System): Similar to firewalls, IPS systems are designed to detect and prevent malicious activity. However, phishing attacks often rely on social engineering, which can be difficult for IPS systems to detect. The user's actions circumvent the IPS.
C. web server: Although web servers can be compromised, they are not the primary target in a typical phishing campaign. Phishing focuses on exploiting users to gain access to systems or data, and while a compromised endpoint *could* be used to attack a web server, the initial target is the user.

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