Given: Many computer users connect to the Internet at airports, which often have 802.

Open networks with captive portals do not provide link-layer encryption, so:

A. Man-in-the-Middle (MitM): Attackers can intercept or modify traffic between the user and the legitimate network (especially before HTTPS negotiation).

B. Wi-Fi phishing: Evil twin APs may mimic the legitimate hotspot and show a fake captive portal, stealing user credentials or prompting malicious downloads.

Incorrect:

C. Management interface exploits target device admin panels, not typical client users.

D. UDP port redirection and

E. IGMP snooping are network-layer behaviors, not common user-targeted attacks.