Structural deviations, no incidents
Firewall audits show a clear pattern: in a large part of the environments, there are critical shortcomings. This is rarely due to one incorrect setting. The problem runs deeper.
In practice, firewall policy slowly deviates from the original intention. This often arises under time pressure, for example, when quick access needs to be arranged for an application. What is intended to be temporary then remains in place.
This leads to situations where access rules are too broad, exceptions linger, and rules overlap. For entrepreneurs, this means something fundamental: the firewall is still on, but no longer limits risks as intended.
Compliance without effect is false security
With regulations such as NIS2 and DORA, the requirements for security are becoming increasingly stringent. Simply demonstrating that there are controls is no longer sufficient. Companies must show that those measures actually work.
In practice, this often proves difficult. Firewall audits show that policy and reality are growing apart. What is correct on paper turns out to have gaps in practice. Segmentation seems well set up, but in reality offers less protection than expected.
This brings direct risks. Not only from a compliance perspective but especially because vulnerabilities remain unnoticed — until something goes wrong.
Increasing complexity hinders improvement
An important bottleneck is the complexity of firewall management. After years of changes, an environment emerges where oversight is lacking. Dependencies are unclear, and adjustments are difficult to test.
This leads to a reluctance to implement changes. Stability in operations takes priority, while security gradually weakens. Access is expanded rather than tightened.
For entrepreneurs, this is a classic dilemma: continuity versus security. But in practice, deferred choices actually reinforce the risks.
From control moment to continuous process
Many organizations still rely on periodic audits. However, these only provide a snapshot and do not solve the underlying problem.
A more effective approach is continuous validation of firewall policy. This involves continuously comparing policy, configurations, and actual network traffic. Deviations become immediately visible, and changes can be tested in advance.
With this approach, often supported by Network Security Policy Management (NSPM), firewall management shifts from reactive control to a continuous process.
Business impact: more control and less risk
For entrepreneurs, this approach yields more than just better security. It provides control.
Vulnerabilities become visible earlier, allowing incidents to be prevented. At the same time, it becomes easier to implement changes, such as new applications or integrations, without unnecessary risk.
Also, towards compliance, a stronger narrative emerges. Not only because measures are in place, but because it can be demonstrated that they work. In complex IT environments, where cloud, data center, and SaaS converge, this makes a significant difference.
When is firewall policy really in order?
A well-managed firewall environment is not recognized by extensive documentation, but by clarity. Teams understand why access is granted, can justify changes, and base decisions on current insights.
The principle of least privilege only works if that control is present. Without it, policy quickly turns into a sum of historical decisions, without a clear line.
The question that matters
An audit report with critical findings is not an endpoint, but a signal. For entrepreneurs, it ultimately revolves around one question:
Is our firewall policy still a reflection of how we work today — and can we safely adjust it if necessary?
If not, risks remain. Not as an incident, but as a structural part of the organization.
