Managed Firewall or In-House Solution: Which Is Right for You?
A new location, more work from home, Microsoft Teams as a communication channel, or an Internet connection with higher bandwidth: It’s precisely during changes like these that it becomes clear whether the firewall is merely installed or is actually being operated reliably. The question Managed Firewall or Self-Managed It determines not only security, but also responsibilities, response times, and the workload on your IT department.
A firewall isn’t a device you configure once and then forget about. It serves as the central control point between the corporate network, the Internet, cloud services, and often telecommunications as well. Rules must be maintained, security updates must be installed promptly, and unusual activity must be detected. For Swiss SMEs, therefore, it is less about an ideological decision and more about an honest assessment: What skills and resources are permanently available in-house?
What Really Goes Into Running Your Own Business
In an in-house model, the company purchases, installs, and manages the firewall itself. The IT department or an external administrator defines access rules, manages VPN connections, updates the firmware, and analyzes logs. This model offers maximum control. Organizations that must comply with complex internal requirements, run multiple specialized applications, and have an experienced security team can benefit from this model.
Hardware costs are just the tip of the iceberg. On top of that, there are licenses, replacement equipment, maintenance contracts, and—above all—labor costs. A new web application, an additional VPN user, or a network configuration change can quickly become a major task for the administrator. For smaller IT teams, this work directly competes with projects, support requests, and day-to-day operations.
Operations outside of office hours can be particularly challenging. Security alerts don’t wait until Monday morning. If an Internet connection goes down, an update fails, or data traffic indicates an attack, clear lines of responsibility are needed. Without a structured on-call schedule, it’s often unclear who will assess the situation, make decisions, and take action.
Control does not automatically mean security
In-house operations are often equated with control. This is true only if that control is actively exercised. A detailed configuration offers little protection if it hasn't been reviewed for years. Similarly, overly broad rules, forgotten port openings, and unused VPN accounts can create risks.
For companies with in-house expertise, it’s worth organizing their in-house operations like a dedicated service: with designated personnel, documentation, regular reviews, emergency procedures, and time slots for updates. Without these components, flexibility can quickly turn into a dependence on individual people.
Managed Firewall: Operated as a clear-cut service
With a managed firewall, a specialized partner handles defined operational tasks. Depending on the scope of services, these include initial configuration, monitoring, firmware and security updates, connection monitoring, and support for troubleshooting and changes. The company retains control over its network but does not have to perform every routine technical task itself.
The greatest benefit often lies in the reliability of operations. Security alerts are not only generated but also reviewed according to agreed-upon processes. Updates are scheduled and deployed. If problems arise, there is a designated contact person who is familiar with the infrastructure, internet access, and the customer’s requirements. This significantly reduces the coordination effort, especially when telephony, site networking, and cloud applications need to work together.
For many small and medium-sized businesses, predictable monthly costs are also a strong selling point. Instead of budgeting for unplanned hours spent on troubleshooting, update issues, or procuring a replacement device, day-to-day operations are calculated as a service. This does not mean that every change is included. A transparent scope of services is crucial: What is being monitored? What are the response times? Which changes are included? Who is responsible in the event of a security incident?
Particularly relevant for telephony and networked locations
Modern corporate communications place specific demands on the network. SIP trunks, cloud PBX, Microsoft Teams Calling, Session Border Controllers, and VPN connections require clearly defined rules and consistent prioritization. An incorrectly configured firewall rule can not only block a website, but also prevent incoming calls, impair voice quality, or disrupt a site’s connection.
With distributed teams, complexity continues to increase. Employees access systems from their home offices, remote locations are connected via site-to-site networking, and applications reside in the cloud. A managed firewall can consolidate these requirements into a coordinated operational framework. It is important that the service provider understands the business-critical services and does not simply open individual ports.
Managed Firewall or In-House Solution: The Decision-Making Criteria
The right choice rarely depends solely on the size of the company. A small business that uses many cloud services and lacks an in-house IT department often benefits significantly from a managed service. A larger company with security specialists can choose to manage certain areas itself. A hybrid model often makes sense as well: The partner monitors and maintains the platform, while the in-house IT team approves policies for line-of-business applications and is responsible for the network architecture.
Before making a decision, answer these questions as specifically as possible:
- Is there sufficient in-house expertise regarding firewall rules, VPNs, threat analysis, and firmware updates?
- Who is responsible for responding to malfunctions or security alerts outside of business hours?
- How many locations, home offices, cloud services, and business-critical communication channels need to be protected?
- What level of downtime is acceptable for telephone service, Internet access, and core applications?
- Have responsibilities, changes, and emergency procedures already been documented?
Anyone who can only partially answer these questions should not underestimate the operational costs. A firewall is not an isolated security product. It affects accessibility, collaboration, and productivity throughout the entire company.
What to Look for in a Managed Service Offering
"Managed" is not a uniform term for services. Some offerings primarily include the provision of hardware and occasional updates. Others include ongoing monitoring, active incident response, configuration changes, replacement hardware, and a clear escalation process. Therefore, do not compare offerings based solely on the monthly flat rate.
Ask about the specific operating model. You should know which events are monitored, how quickly a notification is processed, and whether the provider will actively contact you in the event of a critical incident. Equally important are the ownership structure of the hardware, how configuration data is handled, and the options available if you switch providers.
Data protection and the location of data processing are also on the agenda. For Swiss companies, requirements regarding access, log data, and order processing can be critical. A good partner explains these points clearly and translates technical requirements into understandable decisions for senior management and IT.
The most common mistake: Planning security separately from communication
Firewalls, Internet connections, and telephony are often procured from different providers and only considered together when a problem arises. Then the search for the cause begins: Is it the router, the firewall, the SIP trunk, Microsoft Teams, or the local cabling? These points of contact take time to troubleshoot, especially when customers or employees cannot be reached.
An integrated approach offers advantages here. When network security, business Internet, site connectivity, and communication platforms are coordinated, priorities, access, and troubleshooting can be organized more clearly. Winet combines these infrastructure components with personalized support to ensure that security requirements and accessibility do not conflict with one another.
Making the right decision, therefore, does not start with the question of which device is the cheapest. Determine which processes your company can reliably handle on its own and where a clearly defined service can ease the operational burden. When responsibilities, response times, and communication channels are defined in advance, the firewall becomes what it’s meant to be: reliable protection for your day-to-day work.