Identify security objectives
Using the CIA triad is a great approach to information technology security systems.
Security Ninja defines C as confidentiality, I for integrity, and A for availability (1).
Identify assets and external dependencies
Keeping an accurate inventory is one step in identifying assets. Performing a scan
using a tool such as Nmap can help find unknown assets to add to the inventory.
Also, network devices such as gateways, wireless access points (WAP), and
firewalls can provide additional information for the inventory as well.
External dependencies for a home network should include power, HVAC, and an
internet access provider.
