Network security audit
Review topology, access paths, firewall rules, remote access and available logs.
Network Security
Network security services protect how users, systems and locations connect, through firewall policy, segmentation, secure remote access and monitoring. Umbrella Tech reviews your current network, designs the controls it needs and implements changes in tested stages, so a single compromised account or device cannot reach everything and your team has current documentation of how the network is protected.
The problem
The challenge we help you address
A flat network, ageing firewall rules and undocumented remote access can make a single compromised account or device more consequential. Changes become difficult when nobody has a reliable map of existing dependencies.
The outcome
What the engagement should deliver
The outcome is a more deliberate network security model, supported by tested policies and current documentation. If hardware needs replacing, our Firewall Upgrades service covers selection and cutover.
How we can help
Segmentation design
Separate users, servers, guests, management interfaces and operational equipment.
Remote access
Tighten VPN access, or move to identity-based access with multi-factor authentication (MFA) where it suits.
Implementation and testing
Introduce agreed policy changes, test business traffic and document the resulting configuration.
An example of careful network change
For an IT provider's client, we replaced the firewall, switch and Wi-Fi access points in a single site visit, recording every connection before changing it and testing internet, Wi-Fi, printing, VPN and phones with staff before leaving. The Rosh Tech case study describes the approach and the handover document that followed.
Frequently asked questions
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What do network security services include?
Usually an audit of the current network, a design for segmentation, firewall policy and remote access, staged implementation and documentation. Some engagements stop at the network security audit and roadmap; others carry through to implementation.
When should a business use them?
When the network has grown without a plan, firewall rules have not been reviewed in years, remote access is broad, or new sites and cloud services have changed how traffic flows.
Does improving network security always require new equipment?
No. Some improvements involve configuration, access management or network design. We assess whether existing equipment can support the required controls before recommending replacement.
How long does a project take?
It depends on the number of sites, the complexity of firewall rules and the change windows available for testing business traffic. Scope and timing are confirmed in discovery.
What are the main security or governance considerations?
Changes go through change control with a rollback plan, administrative interfaces sit on separate networks and logs are kept where someone reviews them. Network controls work best alongside identity controls, as described on our Zero Trust Implementation page.
Plan the next improvement
Tell us what concerns you most about your environment and what evidence you need to show.