Final answer:
Disabling SSID broadcast and enabling MAC address filtering are two features that increase wireless network security by making the network less visible and restricting access to approved devices.
Step-by-step explanation:
Two wireless configuration features that make it harder for a hacker to see and attach to a wireless network are disabling the SSID broadcast and enabling MAC address filtering. By disabling the SSID broadcast, the network name is not openly broadcasted, making it less visible to casual scanners. Whereas, MAC address filtering adds an additional layer of security by allowing only devices with specific MAC addresses to connect to the network. However, these measures are not foolproof and should be combined with other security practices such as strong encryption (like WPA2) and a robust firewall.