Content(add): new Network Security Framework

[mattaereal]

What content are you looking to add?

snf provided as feedback something that makes total sense, creating a Network Security category and including cloud, DDoS, DNS, and related stuff inside.

Why do you think it is important?

It is important because it will probably be a clear category for network-related things, leaving the infrastructure topics specifically to it.

Can you cite resources where to base the content from?

An example categorization can be something like this:

1. Infrastructure
   1.1 Cloud Infrastructure
   1.2 Operating System Security
   1.3 Asset Inventory
   1.4 Identity and Access Management (IAM)
   1.5 Zero-Trust Principles

2. Network Security
   2.1 DDoS Protection
   2.2 DNS and Domain Registration
   2.3 Network Segmentation
   2.4 Firewall and Intrusion Detection Systems (IDS)
   2.5 VPNs and Secure Tunnels

[mattaereal]

Article for this! VPNs could be a good start.

https://blog.theredguild.org/are-vpns-really-necessary-is-https-enough/

[mattaereal]

@frameworks-volunteer, would you create a primer for this, minimalistic but useful, battle-tested, based on the current contents and the expected category? Also, take into account that inside privacy I already committed a ton of work for VPNs. Maybe there we could just reference the network, or the other way around. Should we have a Network domain, or should it be included inside the rest? what do you think?

Take a look at this AGENTS.md while you think about it (https://raw.githubusercontent.com/security-alliance/frameworks/e0eb9b741467e06d3d3a04e0e2d1884825a47507/AGENTS.md). Post a detailed plan here before executing anything