Access Point (AP)

An access point (AP) is a networking device that acts as a bridge between wireless devices and a wired network. Operating at Layer 2 of the OSI model, it broadcasts a wireless local area network (WLAN) signal identified by a Service Set Identifier (SSID), enabling devices such as laptops, smartphones, and IoT devices to connect to a local area network (LAN) or the internet. Access points are foundational components in enterprise and home network infrastructures, extending network connectivity beyond the limitations of physical cabling.

From a cybersecurity standpoint, the access point represents both a critical control point and a potential attack surface. Securing an AP requires implementing strong encryption protocols like WPA3, enterprise-grade authentication such as 802.1X with RADIUS, rogue AP detection, regular firmware updates, and network segmentation through VLANs. Misconfigured or unprotected access points can expose an organization to unauthorized access, data interception, and lateral movement by threat actors, making their proper hardening essential to any network and infrastructure security strategy.