Managed or purchased firewall: cost, risk and effort over 3 years
Without configuration, updates, valid licences and alerts that someone reads, a firewall is just an expensive router. For SMEs of 10 to 150 seats with remote work, managed is the right choice.
More than 10 workstations · support contract · remote, on-site and phone support
02 · Managed or purchased firewall
What has to happen for a firewall to actually protect?
Four conditions, none of them included with the equipment. The firewall filters traffic between the internet and the network, hunts for threats, blocks dangerous categories, terminates VPNs and isolates segments. But only if:
What goes wrong with a purchased, unmanaged firewall?
Almost always the same thing. The company buys the equipment and licences, an engineer configures it on installation day and, from then on, nobody looks at it again.
01Without configuration, updates, valid licences and alerts read, a firewall is just a pricey router.
02Buying pays off with an in-house security team, usually above 150 to 200 workstations.
03For SMEs with 10 to 150 workstations and VPN or remote work, managed is the right choice.
04Demand ownership of the configuration, monthly reports, written deadlines, a clean exit.
In this article
A firewall with expired subscriptions keeps letting traffic through, but stops inspecting it. The company believes it is protected and is not. The choice between a managed firewall or a purchased firewall is decided right there: not on the price of the box, but on who keeps it updated, reads the alerts and reacts at 3am. We compare the two models on cost, risk and effort, with objective criteria.
What has to happen for a firewall to actually protect?
Four conditions, none of them included with the equipment. The firewall filters traffic between the internet and the network, hunts for threats, blocks dangerous categories, terminates VPNs and isolates segments. But only if:
The rules are designed for the company: factory rules serve everyone and no one in particular.
Firmware and signatures are up to date: every delay is a known door.
Security licences are valid: they expire silently.
Someone follows the logs: and acts when an alert is serious.
Miss one of these conditions and you pay for a security appliance but get a router.
What goes wrong with a purchased, unmanaged firewall?
Almost always the same thing. The company buys the equipment and licences, an engineer configures it on installation day and, from then on, nobody looks at it again.
Firmware frozen For two or three years.
Inspection switched off Because subscriptions expired months earlier.
Accumulated exceptions Rules opened to fix an emergency and never closed.
Alerts with no reader Sent to a forgotten mailbox.
In this model's favour: predictable upfront investment, owned equipment and no monthly fee beyond the licences. The problem is not the brand. It is that nobody owns it.
What changes when the firewall becomes managed?
It gets a team responsible for it, for a monthly fee. The equipment can belong to the company or come with the service.
Licences and updates Handled without reminders.
Alerts analysed by engineers Not just filed in reports.
Rules reviewed At fixed intervals.
Incidents with a deadline A contracted response time.
Documented know-how That stays even when someone in the internal team leaves.
The price is the monthly fee and dependence on the partner. It is kept in check with a written SLA and a contractual guarantee that credentials and configuration belong to the company.
How do they compare side by side?
Dimension
Purchased firewall
Managed firewall
Investment
Heavier upfront, light afterwards
Light upfront, higher monthly fee; over three years, similar totals
Patches
Only if someone remembers
Scheduled and guaranteed
Alerts
Generated
Resolved, a 3am VPN alert read at noon is of little use
Rules
Frozen on installation day
Adjusted for every new office, remote working arrangement or new software
Incident
A search for someone who knows the kit
Written response deadline
Technical memory
In one person's head
Documented and shared across a team
Which one suits your company?
A purchased firewall works when…
…there is an in-house IT team with the skills and availability for security, which usually happens from 150 to 200 workstations upwards. Or when the environment is simple and stable: no remote working, no VPN and no services exposed to the internet.
A managed firewall is the right choice when…
…nobody in-house has security as their job, there is remote access or published services, NIS2 or the cyber insurance policy calls for continuous management, or an incident has already revealed unread alerts. That is the reality for most Portuguese SMEs with 10 to 150 workstations.
Which clauses should you demand in a managed firewall contract?
Ownership The configuration and equipment are yours; administrator credentials are kept in a digital vault or sealed envelope.
Accountability A monthly report on what was blocked, updated and changed.
Real urgency Security events at the top of the queue, with a committed deadline.
Rule audit At least every six months.
Reversibility If the contract ends, the firewall stays active and everything remains with you.
These are the terms of DataRoad's managed firewalls, with installation, configuration and monitoring handled by our team. In 11 years, DataRoad has never suffered a security incident.
Which clients already run a managed firewall?
FreshDesign: next-generation firewall, SSL VPN for remote work, two internet links with load balancing and automatic failover, real-time alerts and ongoing maintenance. See the project.
Ventask: an organisation with more than 350 workstations where firewalls, switches and access points are managed within IT Unlimited. See the case study.
Quick answers for decision-makers
Can we convert the firewall we already have to managed?
Yes, almost always. If the equipment still has vendor support, we take over its management; if it is end-of-life, we plan a phased replacement.
Does the ISP router do the same job?
No. It separates the network from the internet, but it does not inspect, filter by category, manage VPNs with MFA or segment. It is the first device to replace in a business.
What does a managed firewall cost?
Under an IT Unlimited contract, management is included in the monthly fee. The final price depends on throughput, number of users and active features; we do not provide this service on a one-off basis.
Does a managed firewall meet NIS2?
It helps, but it is not enough. The directive also calls for access control, backups, incident response and training; the summary is in NIS2 for Portuguese companies.
Is your firewall really protecting you?
We analyse firmware, licences, rules and alerts and deliver in writing what is exposed. Request a no-commitment proposal.
More than 10 workstations · support contract · remote, on-site and telephone support. Call +351 211 459 950 * or write to sales@dataroad.pt.