“Can you show me everything we’ve got today?”
It’s a question that comes up unexpectedly during a board meeting. Not a complicated question about Zero Trust, ransomware or NIS2. Just a seemingly simple question.
“What digital assets do we have? Where are they stored? Who has access to them? And which ones currently pose the greatest risk to us?”
The CISO looks at his team. There is no immediate reply.
It is not because the organisation’s cybersecurity is not up to scratch. On the contrary.
There are modern firewalls, endpoint security, identity solutions, a SOC that monitors 24/7, and an incident response process that is regularly practised.
Even so, it takes longer than expected to get the full picture.
And that is perhaps where the greatest challenge of modern cybersecurity lies.
The digital landscape is growing faster than our ability to keep track of it.
Cloud platforms, SaaS applications, OT environments, IoT devices, suppliers, APIs and, more recently, AI agents are being added to the IT landscape almost daily. Often under control, sometimes temporarily, and sometimes outside the IT department’s purview.
That does not necessarily make organisations any less secure.
It is more complex, though. And, above all, less straightforward.
That is precisely where the digital blind spot arises.
A new vulnerability is not always a vulnerability
When we talk about cybersecurity, we often think of ransomware, phishing or a critical software vulnerability.
But more and more often, an incident starts somewhere completely different.
- In a cloud environment that was originally set up for a project and has never been removed.
- A supplier whose access has never been revoked.
- An IoT device that started out as a pilot project but is now part of the company’s network.
- A SaaS solution that was procured without the involvement of the IT department and now processes sensitive business data.
None of these situations is exceptional in itself.
The problem is that they have often become invisible.
And you can’t protect what you can’t see.
The perimeter hasn’t disappeared. It has faded.
For years, cybersecurity was based on a single principle: protect the perimeter.
The firewall formed the boundary between the inside and the outside. The inside was familiar; the outside posed a risk.
That world no longer exists.
Employees work from anywhere. Applications run across multiple cloud environments. Data is constantly moving between organisations, suppliers and platforms. Production environments are connected to analytics platforms, and AI is increasingly being integrated into business processes.
The perimeter hasn’t disappeared.
It is simply no longer a single, clear line.
As a result, the most important question in cybersecurity is also changing.
Not:
“How do we protect our skin?”
However:
“Do we actually still know where our digital presence begins and ends?”
Visibility is no longer a tool
In recent years, the focus has rightly been on prevention and detection. Organisations have invested in better firewalls, endpoint security, identity solutions and monitoring.
But all these solutions come with one condition.
- They need to know what they’re protecting.
- You can’t resolve a vulnerability you’re not aware of.
- You cannot prioritise a risk without context.
- You cannot implement Zero Trust if you do not know which identities have access to which systems.
- And you can hardly manage an incident if you don’t know which assets might be affected.
Visibility is therefore no longer a support function.
It is the foundation on which modern cybersecurity rests.
From asset inventory to asset intelligence
Many organisations have a CMDB or an asset register.
That’s valuable.
But registration alone is no longer enough.
The relevant question is not just:
“What assets do we have?”
But above all:
“Which of those assets pose a business risk?”
A laptop, a Kubernetes cluster, a production robot, an AI model and a medical application all represent a different value.
That is why asset management is shifting from simply taking stock to understanding.
Organisations want to have a constant overview of:
- which assets are active;
- who the owner is;
- what software and vulnerabilities are present;
- what connections exist;
- what data is processed;
- which external risks are apparent.
It is only when that information comes together that context emerges.
And without context, cybersecurity remains largely reactive.
From reacting to looking ahead
Perhaps that is the biggest change of all.
Traditionally, organisations respond to signals.
A malware alert.
A suspicious login.
A security alert.
Increasingly, attention is shifting to a different question.
What can an attacker already see today that we can’t yet see?
That is precisely the idea behind developments such as Attack Surface Management, Continuous Threat Exposure Management (CTEM) and External Risk Management.
Don’t wait until an attack becomes apparent.
But gaining a continuous understanding of where the organisation is vulnerable before an attacker exploits those weaknesses.
Visibility as the foundation for Zero Trust and CSMA
Modern security architectures are also moving in that direction.
Gartner’s Cybersecurity Mesh Architecture (CSMA) is a model that focuses on identity, assets and risks.
That only works if organisations have up-to-date context.
Who is requesting access?
Which resource?
From which location?
What is the level of risk?
Visibility provides that context.
And so it becomes the layer that links all existing security measures.
Stronger together
For many organisations, it has become virtually impossible to maintain that overview entirely on their own.
Not because of a lack of knowledge.
But because the digital environment is constantly changing.
- New cloud services.
- New AI applications.
- New suppliers.
- New regulations.
- New attack techniques.
That is why more and more organisations are opting for a co-managed approach.
Not to relinquish control.
But precisely in order to retain that control.
In-house teams know the organisation.
Specialist security partners provide additional expertise, up-to-date threat intelligence, continuous monitoring and extra capacity when required.
Working together, we can achieve the level of oversight that a single party can hardly manage on its own any more.
The new security perimeter
Cybersecurity has long since ceased to be solely about building stronger defences.
The real challenge is knowing what you’re protecting.
Because, ultimately, one simple truth still holds true.
- You can only protect what you know.
- You can only control what you understand.
- You can only rely on what is visible.
The organisations that will continue to grow successfully in the digital sphere over the coming years are not those with the most security products.
It is the organisations that truly understand their digital reality.
Visibility is therefore not the next step in cybersecurity.
It forms the foundation on which all subsequent steps are built.