An old question – do you require a distinct hardware firewall for your home office?
An old question – do you require a distinct hardware firewall for your home office?
I work remotely with around 30 devices linked to my Wi-Fi network, including both main and guest connections. Using a Linksys mesh system with a primary router and two satellites. My question is whether adding a separate hardware firewall, such as a Firewalla or Fortinet device, would be worthwhile. I currently use Norton 360 on all my machines and phones, and Windows Defender is also enabled on PCs. I'm considering getting a firewall mainly because I enjoy technology and it wouldn't feel like a loss to have additional protection. What do you think?
Protection against what.
Your router, due to its NAT settings and perceived simplicity, prevents any external threat from reaching your internal devices. It discards unknown traffic without knowing which machine to send it to.
Safeguarding against attacks from within your network is extremely challenging. The LAN was built for efficient communication among devices, not for security. You’d need to route all traffic through the firewall, which isn’t feasible with consumer hardware. Private VLANs exist but aren’t supported on most consumer-grade systems.
If someone already has access inside your building, they could potentially bypass the firewall by physically connecting around it.
Setting the firewall on a device to public would hinder file and printer sharing in Windows.
It seems you're considering the necessity of additional security measures against increasingly sophisticated cyber threats driven by AI. You feel confident that the chances of being targeted are minimal, and you're questioning whether extra hardware is truly needed. Your perspective highlights a practical approach to resource allocation. Thank you for sharing your thoughts.
Nothing can enter through a direct assault because of NAT.
Most attacks today are indirect, mainly targeting the individual behind the machine.
Firewalls or software offer little help in safeguarding someone who has been deceived into executing malicious code.
Data encryption secures user information but also blocks firewalls from monitoring attempts to trick users.
Technically, you might obtain a firewall that can examine certain encrypted data (such as traffic using SSL/TLS and specific ports). A model costing around $500 would likely fall short in performance, and if it does work, you'd need to pay the ongoing subscription cost to maintain access and receive updates. Depending on your internet plan and Wi-Fi speed, additional expenses may arise to ensure the device operates without slowing down your connections. A tabletop unit offering 2.5Gbps speed could drop to 300Mbps after inspection, still costing over $1000 with a single year of service; a rackmount model supporting 6Gbps might struggle to handle 1Gbps with inspection and would cost around $4000. You'd also have to install the SSL certificate on all connected devices to enable its "man in the middle" mode, allowing inspection without raising browser or app warnings.
These firewalls go beyond basic security by focusing on protecting your own devices from malicious activities, such as unauthorized access to harmful servers, data breaches, malware detection, and filtering unwanted content. Some features are considered essential for comprehensive protection, while others are included in premium subscription plans. With most websites now using HTTPS and browsers typically blocking unencrypted sites by default, the value of these advanced capabilities diminishes unless you employ deep packet inspection and support for stronger encryption. Vendors recognize that serious organizations investing in robust security will invest significantly annually to obtain such protection.
If your network includes servers, port forwarding, or public subnets, the firewall can defend against attacks on those ports while allowing legitimate traffic through. Many also offer VPN services and proprietary clients, enabling you to use any device without running it behind a router and exposing it to additional risks.
Thank you for the guidance.
I've chosen not to install a firewall since my current setup with the router and Norton meets my needs.