Update firewalls.mdx

Updated DDoS mitigation.

src/content/docs/security/firewalls.mdx

@@ -15,6 +15,8 @@ The concept of firewalling is to prohibit access to your system via the network,
     <li>Firewalls can separate parts of your network to reduce the spread of potential security breaches.</li>
     <li>Firewalls can mitigate Distributed Denial of Service (DDoS) attacks by controlling traffic flow and blocking malicious requests.</li>
 </ul>
+*In the case of DDoS attacks, you must have available bandwidth (the attack volume must be lower than your total available bandwidth) to continue operating during the attack.*  
+*If you forsee anything larger than 10Gbps attacks (common) and don't have DDoS protection, try getting hardware firewall access or a 3rd party DDoS protection provider.*
 
 Depending on your host, your system has some sort of firewall already installed. If not, your host may offer a firewall panel to access and configure a hardware absed firewall, like a switch or a router.