Curriculum
Course: Cyber Security
Login

Curriculum

Cyber Security

Text lesson

WIFI Security

Wi-Fi offers several security options, including:

  • No security
  • MAC address-based access control
  • PSK (Pre-Shared Key)
  • Enterprise authentication

Many Wi-Fi attacks depend on network cards equipped with two key features:

  1. Monitor Mode: Allows the network card to capture packets intended for all MAC addresses, forwarding them to the operating system instead of just its own.
  2. Packet Injection: Enables the network card to craft packets using a source MAC address different from its own.

Open WIFI Networks

An open Wi-Fi network is one without a password, meaning that communication between the access point (AP) and clients is unencrypted. While convenient for users, it poses security risks, as attackers can easily sniff packets to view sensitive information and user activities on the network.

open wifi

Hidden SSID

Access Points (APs) can disable broadcasting the network name (SSID), requiring clients to know it to connect. However, hiding the SSID is not recommended, as the network name is still exposed when clients connect. Additionally, clients must actively search for the network, broadcasting information wherever they go, which can allow attackers to sniff Wi-Fi traffic and gather details about the clients and the networks they have previously joined.

hidden SSID