Connect. Secure. Manage.
Network Security Assessments
Review the security of Cisco and Meraki networks through authorised assessments, practical remediation plans and clearly scoped compliance evidence.
Devices supported
across the UK
Client locations
supported
Traffic handled
at peak time
Average
response time
Average response is not a resolution time or a contractual guarantee. Support scope and response commitments are agreed for each engagement.
A network security assessment checks whether your controls fit the risks you face. We review Cisco and Meraki systems with the owner’s permission and within an agreed scope. The work may find broad access rules, exposed management services or kit that is no longer supported. Each finding comes with evidence and a practical next step.
Defined trust
Make access boundaries explicit rather than relying on an assumed internal network.
Controlled access
Connect identity, policy and network enforcement to the services people actually use.
Evidence for change
Test the intended security outcome and retain useful operational records.
Choose the assessment that answers your question
First, we agree the question you need answered. A settings review may check who can manage a device. A review of known flaws may check vendor security notices. A penetration test may try to cross a boundary with permission. These are different tasks, with different methods and access needs.
The scope sets the limits of what a result can prove. Switch settings alone cannot show whether every endpoint is secure. A scan for known flaws cannot prove that an app grants the right access. The proposal names the systems, controls and tests included. It also states which evidence the work will not provide.
Standards & partnerships
Confidence in the team behind your network.
Cisco Partner
Cisco Meraki
Cyber Essentials
Cyber Essentials PlusMCI Network Services is operated by Proxar Ltd. Certifications apply to the certified legal entity and the scope of its certificates. View accreditation information
Agree authorisation and operating boundaries
We identify who owns each system and get permission before collecting settings or running active checks. Shared systems and provider-managed kit may need separate approval. The same applies to other customer networks linked to yours. Being able to reach a device does not give anyone the right to test it.
The plan sets out the allowed checks, change windows, contacts and reasons to stop. Services that run critical operations or serve financial markets may need extra care. If a test could disrupt a service, we discuss safer options. We explain both what those checks can show and what they cannot prove.
A useful starting point
Not sure where to start?
Bring the requirement. We will help you define the engineering work.
Build an evidence-based view of the estate
We start with the asset list, network map and key app paths. We compare them with device settings, management tools and agreed observations. Missing or conflicting records are findings too. They can make it harder to judge the risk or restore a service during an incident.
We collect only the evidence needed for the review. Settings, logs and packet captures may hold passwords, personal data or business secrets. We agree what to mask, how to send it, who can see it and how long to keep it. The report should explain each finding without copying secrets into it.
Different environments. The same care.
Built around the work
your network supports.
Finance, banking and the wider private sector. We start with the systems and people that depend on your connections.
Finance & banking
Market-data paths, routing and provider coordination on clients’ behalf.
Financial-market services ↗Offices & multi-site teams
Reliable access between people, workplaces and business applications.
Office network design ↗Data centres & cloud
Network boundaries, workload connections and operational ownership.
Data centre networks ↗Examine the controls that matter to your network
The agreed checks may cover admin access, identity checks, network boundaries, firewall rules, software support and monitoring. We assess controls for the actual Cisco or Meraki system in use. That means checking the device, software version, licence and management model. One general checklist cannot settle every question about every platform.
We also look at what happens when normal service changes. A strong login policy may still rely on an unmanaged emergency account. A backup path may lose controls that work on the main path. We review maintenance, recovery and supplier access, as well as normal use.
Separate observations from conclusions
Each finding states what we saw, which systems it affects and what the evidence supports. We keep confirmed risks separate from ideas that still need testing and gaps in the records. Your team should be able to trace a finding back to its evidence and decide how urgently to act.
A technical score is one part of the risk. Where and how a service runs also matters. An admin service exposed to the internet differs from one on an isolated maintenance network. We explain the reasons for each rating. We also note other controls or facts that may change it, including those outside our review.
Turn the report into a manageable improvement plan
The report groups findings into work that can be planned and carried out safely. Some fixes change settings. Others need new software, a named access owner, supplier help or a new design. We explain the likely benefit, what must happen first and the possible impact on service.
Fixing and retesting are separate parts of the agreed scope. Accepting a suggestion does not mean it has been applied. Applying a change does not prove that the fault is gone. Where follow-up tests are included, we compare the new result with the original finding and record what remains unresolved.
Support assurance without overstating it
The report can help an internal risk review or a wider assurance programme. It does not by itself certify your business against ISO 27001, PCI DSS or another standard. The programme owner or assessor decides how to use the evidence. Our ISO 27001 network evidence support covers that link between network records and the wider review.
MCI can review a specific Cisco or Meraki service or an agreed network scope across several UK sites. Tell us the concern, the services that matter and the decision you need to make. We can then agree the right checks, permissions and outputs, with a practical plan for the next steps.
Technical references
- Technical guide to information security testing and assessment — NIST
- Cisco security technical resources — Cisco / Cisco Meraki
Talk to a specialist
What does your network need next?
Tell us what you are planning, changing or trying to improve. We will help define a practical next step and the engineering scope.
+44 203 196 6566Choose option 1
sales@proxar.co.ukUK-wide service.
Most of our engineers are based in Kent, with a focus on London, Sussex, Essex and Berkshire.
Existing customers should use their agreed support and escalation channels. This form is for service enquiries, not a monitored emergency ticket.
Tell us what you need.
A short outline is enough. Please do not include passwords or sensitive network details.
Thank you. Your enquiry has been submitted.
Please check your name, email and message, then try again.
Your form session expired. Please try again.
Please wait a minute before sending another enquiry.
We could not submit your enquiry. Please call or email us instead.