Some APs support MAC Address Filtering, allowing only specific devices to join the network. However, this method is insecure because an attacker can sniff network traffic, capture allowed MAC addresses, and then spoof their own MAC address to bypass the filter.
PSK (Pre-Shared Key) means the network is secured with a password, typically using the WPA (Wi-Fi Protected Access) protocol. Older protocols like WEP (Wired Equivalent Privacy) are obsolete and highly vulnerable to attacks. WPA, with WPA3 being the latest standard as of 2021, provides stronger security but is still not fully immune to attacks. To breach a WPA-secured network, an attacker must crack the password, a time-consuming process if the password is strong. If an attacker can sniff a user’s authentication attempt, they can attempt to crack the password using tools like aircrack-ng.
