CrowdSec

Since I've only used CrowdSec in a homelab/small-medium sized business setup, that's really the only market I can safely recommend it and say it's well suited for, because I don't know how much it would cost to run it in an enterprise environment. I've heard some pricing and how they plan on rolling out a subscription model, but it's still in talks. Either way, if you have publicly exposed web applications hosted locally or on a virtual private server, then CrowdSec should be part of every virtual machine and/or network. Even with the lmited number of filter you get out of the free subscription, it provides a nice layer of constantly updated data,

Incentivized

• Provides great integrations with tools you already use, such as fail2ban, Cloudflare, WordPress, NGINX, Linux Firewalls, etc.
• Lightweight agents can run on individual servers and report to a main security engine so that if there's an attack on one server and a block is implemented, the entire network can be protected
• There are a lot of ways to receive alerts and store logs
• CrowdSec Central API is a nice way to manage everything externally

Incentivized

• Getting CrowdSec to run on OPNsense can be a challenge, but that's also a limitation of the OS
• You can only subscribe to a couple of feeds before paying an unknown amount of money that's part of their "Enterprise" package. So, there could be better transparency.

Incentivized

• It flat-out blocks malicious IPs from accessing any PC on my network.
• It's free-tier makes this a no brainer to implement

Incentivized