Thoughts and feedback on this?

According to Cisco, a network device manufacturer, a firewall is a security device that can analyze network traffic and determine if it needs to be blocked or allowed per predetermined rules.¹Most modern PC operating systems, as well as Wi-Fi routers, have a built-in firewall which is mostly suitable for a single endpoint or SOHO. Enterprise firewall appliances are more powerful and configurable than consumer-grade software-based firewalls, pfSense, for example, supports advanced features such as IDS/IPS, captive portals, traffic shaping and many other features.²While a home or small office network might be well served by a lower end firewall, enterprise firewalls typically have better hardware to allow them to manage the additional features and large networks consisting of hundreds or thousands of users, multiple VLANs, and satellite locations. Whatever the use case, a firewall is a good idea for any network as an extra level of network security from unsafe browsing habits and other lapses of end-user judgment.

Wireless connections, like Wi-Fi, are inherently more insecure than wired connections due to the fact that both the sending and receiving devices broadcast information over a wide area as wireless devices are mobile. Bluetooth does have some security measures such as encryption and the use of a PIN for pairing devices. For increased safety Webroot recommends turning off Bluetooth when it is not being used, using only devices that comply with the newest standards and security measures, and to change default PINs on devices when possible.³

RFID is frequently used in the shipping industry to quickly and easily track and identify packages. The technology works well for this as the trackers dont require constant power and receivers can communicate with the tags from up to 100 meters (for UHF devices). Both wireless and Bluetooth devices need power on both ends to communicate which is impractical in this application. With modern manufacturing advances, all of these technologies can have very small radios/receivers, however, RFID clearly has a size advantage with chips being 0.05 x 0.05 mm.⁴