Can a company have customers, a recognisable brand, a working business model, procedures, people, infrastructure and still lose to the future? Can an organisation be convinced that “everything works”, while the world around it is already changing the rules of the game? And could many companies today be making exactly the same mistake when they say: we have a firewall, antivirus, backups and an IT provider, so cybersecurity is under control?
This is not a comfortable question. But it is a necessary one.
The story of Blockbuster is one of the most well-known business lessons of recent decades. The company had stores, customers, processes, market habits and enormous brand recognition. For many people, a video rental store was something obvious. You walked in, chose a movie, rented a tape or a DVD, went home and watched it. The model worked. It was understandable. It was physical. It was part of everyday life.
Then Netflix appeared.
At first, it did not look like a revolution that would overturn the market. It did not have the same network of stores. It did not have the same physical presence. It did not look like a classic competitor that Blockbuster could easily measure using old categories. And that is exactly where the most important lesson begins. Netflix did not win because it created a better video rental store. It changed the way people thought about access, convenience, time and customer behaviour.
Blockbuster looked at the market through the lens of the store. Netflix looked through the lens of changing user behaviour.
Isn’t something very similar happening in cybersecurity today?
Many companies still look at security through the lens of the old model. There is a firewall the gate. There is antivirus endpoint protection. There are backups the emergency plan. There is an IT provider someone who reacts when something stops working. There are procedures, passwords, access policies, sometimes an audit and a sense that the company has done “what needed to be done”.
All of that is important. The problem is that it is no longer enough as a complete picture of risk.
A modern company is no longer a simple office with a few computers and one main entry gate. It is a living, connected organism. It runs on cloud services, remote access, SaaS applications, ERP, CRM, MES systems, APIs, technical accounts, supplier integrations, AI tools, industrial devices, automation, servers, laptops, phones, machines, admin panels and services that communicate with each other around the clock.
Risk very often no longer appears only at the edge of the network. It appears between systems. In the behaviour of an account. In an unusual communication direction. In an old supplier access. In an AI tool used outside the official process. In a production device that starts communicating differently than usual. In an application sending more data than it should. In lateral movement that looks harmless if nobody is looking at the whole picture.
And this is where a question appears that should matter not only to IT, but also to the board, the business owner, the production director, the CFO, compliance teams and everyone responsible for business continuity: does the company really see what is happening inside its network?
We are not asking whether it has security tools. We are asking whether it has visibility.
This is a difference many companies notice only after an incident.
Blockbuster saw its stores. It saw customers walking into its locations. It saw shelves, processes, revenue and a model that had worked for years. But it did not see early enough that market behaviour was changing. In cybersecurity, many companies see their tools: firewall, antivirus, backups, procedures, IT provider. But do they see the behaviour of their own environment? Do they see who communicates with whom? Do they see when a technical account starts behaving differently than usual? Do they see data leaving the company? Do they see a supplier logging in at an unusual hour? Do they see the first signs of command-and-control communication, scanning, exfiltration or lateral movement?
If the answer is “we don’t know”, this is not just a technical problem. It is a risk management problem.
The most dangerous thing in cybersecurity today is not only that someone may attack. More dangerous is that a company may not know for a long time that something is already happening. A modern attack does not always start with spectacular data encryption. It often starts with silence. An unusual connection. An old account. An external address. A supplier. A tool used outside the process. A small anomaly that does not look dramatic on its own, but in a broader context may be the beginning of a much larger problem.
Would your company notice such a change?
This question is simple, but uncomfortable. And that is why it is useful.
In small and mid-sized companies, this problem is especially important. Large organisations often have SOC teams, extensive processes, budgets and several layers of protection. SMEs operate differently. They have fewer people, less time, fewer specialists and less room for heavy enterprise-class solutions. But at the same time, they are becoming increasingly connected with larger clients, suppliers, financial systems, logistics, production, cloud platforms and digital services.
That means a mid-sized company may not be the biggest target in the market, but it may be a very convenient entry point.
Attackers do not always choose the biggest doors. Very often, they choose the ones that are less observed.
That is why “this does not concern us” is now one of the most dangerous sentences in business. Not because every company should live in panic. Not because every entrepreneur must become a cybersecurity expert. The point is much simpler: a company should be able to see when something starts deviating from the norm before it becomes a crisis.
This is exactly where network monitoring and the NDR approach begin to have strategic value.
NDR, or Network Detection & Response, should not be treated as another fashionable acronym or a technical gadget for the IT department. Its value lies in observing network behaviour. Not only asking whether a known signature matches a known threat, but whether the environment is behaving normally. Whether traffic fits the company’s pattern. Whether communication is typical. Whether a device, account, application or supplier starts doing something it did not do before.
This is the modern language of risk.
Not “Do we have a tool?” But “Do we see behavior?”
Because having tools is not the same as having situational awareness.
Blockbuster had stores. It had processes. It had a brand. It had customers. But it did not have the right answer to changing market behaviour. In cybersecurity, a company may have a firewall, backups and an IT provider, and still not have an answer to the question: what is really happening between our systems?
And this is exactly where risk increasingly begins.
In a world of AI, automation, remote work, cloud and IT/OT environments, attackers are also accelerating. They use automation, scripts, ready-made tools, phishing content generation, vulnerability analysis and operations at a scale that was harder to achieve just a few years ago. This means companies cannot build their strategy only on what worked yesterday.
Not because old tools are useless. They are still needed. Firewalls are needed. Antivirus is needed. Backups are needed. Procedures are needed. But just as Blockbuster’s stores were useful in the old model of film distribution, classic security tools are not enough when the logic of threats has changed.
The biggest mistake is not using old tools. The biggest mistake is believing that old tools provide a complete answer to a new reality.
It is a bit like Blockbuster saying “We have the best shelves for movies,” while the customer was beginning to no longer need shelves at all.
Today, a company may say “We have a firewall,” while risk increasingly does not ask only about the gate. It asks about behaviour inside the environment. About accounts. About integrations. About suppliers. About cloud. About data. About production systems. About traffic between IT and OT. About what cannot be seen from the level of traditional security controls.
And this is where the advantage of an additional monitoring layer appears.
It is not about replacing everything the company already has. It is about complementing security with an independent layer of visibility. A layer that helps detect anomalies. A layer that can indicate that something is behaving differently. A layer that gives a signal earlier, before the problem becomes obvious to everyone.
Because when a problem becomes obvious, it is often already expensive.
Expensive financially. Expensive operationally. Expensive reputationally. Expensive from a regulatory perspective. Expensive for customer relationships.
If a company learns about an incident only when systems are encrypted, data has leaked or production has stopped, it is no longer managing risk. It is managing consequences.
A good security strategy should move the company from reaction to prevention.
This is the direction NetSenX is built for.
Not as “one more system to tick a box”. Not as heavy infrastructure for corporations with huge SOC teams. But as an additional visibility layer for companies that want to better understand what is happening inside their network. For organisations that need to detect command-and-control communication, lateral movement, data exfiltration attempts, Shadow IT, unusual connections, supplier activity and anomalies in IT and OT environments.
This is especially important for European SMEs, which are becoming more digital, more connected and increasingly exposed to pressure from large customers, audits, regulations and supply chains.
For such companies, the advantage does not have to be the biggest budget. The advantage can be noticing the signal earlier.
A large organisation may have more people. A smaller company may be more agile. But agility without visibility is just moving quickly through fog.
And here the Blockbuster lesson returns.
The problem was not that people stopped wanting to watch movies. They wanted to watch them perhaps even more than before. The problem was that the way of access, expectations, speed and customer behaviour changed. A company that looked at the world through the old model understood too late that the game was already being played somewhere else.
In cybersecurity, the problem is not that companies will suddenly stop needing security tools. Quite the opposite. They will need them more than ever. But the way we need to look at risk is changing. It is no longer enough to think only about the wall and the gate. Companies must understand the behaviour of the entire digital organism.
Is data leaving where it should? Is the production system communicating normally? Is a technical account doing something unusual? Should this supplier still have access? Are AI tools creating new risk channels? Is remote access being used as expected? Does network traffic look like ordinary work or like the beginning of an incident?
These are the questions that will increasingly separate mature companies from those that only feel secure.
And a feeling of security can be very deceptive.
Blockbuster felt that its model was strong. And for a long time, it was strong. But the world does not ask whether a model was strong yesterday. It asks whether the model will be sufficient tomorrow.
Cybersecurity works the same way.
When a company says “Nothing has happened so far,” it is worth asking, has nothing happened, or have we simply not noticed anything?
This is not a malicious question. It is a strategic one.
Because the absence of an alarm does not always mean the absence of a threat. Sometimes it means the absence of visibility.
After an incident, nobody will be especially interested in the company’s good intentions. A customer, auditor, insurer, business partner or regulator will ask for facts. When did the problem start? When was it detected? What was the scope? What data may have been affected? Who had access? What actions were taken? Did the company have evidence? Was the response fast and responsible?
And to have evidence, you first need to see events.
That is why network monitoring is not a luxury. It is not a whim. It is not just a technical add-on. It is increasingly becoming an element of business resilience.
Just as Netflix was not simply another video rental company, but a different logic of access to content, modern network monitoring is not just another security tool. It is a different logic of looking at risk. Instead of waiting until something stops working, the company begins observing whether the environment behaves normally. Instead of reacting only to known signatures, it starts looking for deviations. Instead of relying only on the statement “we have security tools”, it builds real visibility.
This is the difference between looking at shelves full of tapes and understanding that the customer has already moved to the world of streaming.
A similar change is happening in cybersecurity today.
Companies that understand it earlier will have an advantage. Not because they will never be attacked. That would be naive. They will have an advantage because they will see signals earlier, make decisions more calmly, document incidents better and limit impact before the problem spreads across the business.
Companies that wait until risk becomes obvious may wake up in a world where they still have “stores”, but the market has already moved somewhere else.
That is why it is worth asking a few simple questions today.
Does your company see what is happening between its security layers? Does it know what normal network traffic looks like? Can it detect an anomaly before it becomes an incident? Are suppliers, technical accounts, AI tools, remote access and IT/OT environments truly visible? Would the board receive a clear answer if a serious threat signal appeared tomorrow morning?
Or is the hardest answer: we do not know, because we cannot see it?
Do companies still too often confuse having security tools with having real visibility of risk? Do firewalls, antivirus and backups sometimes create a false sense of comfort? Where do you think organisations have the biggest blind spot today: suppliers, cloud, remote access, old accounts, AI tools, production environments or the lack of network behaviour monitoring?
Perhaps someone needs to ask whether their company is looking at cybersecurity the way Blockbuster looked at Netflix.
Are companies ready for the new era of visibility and network monitoring or are they still trying to rent tapes in a streaming world?
Further reading: the NetSenX plans and prices, NDR vs EDR vs SIEM for teams without a SOC and what NetSenX detects and how each alert explains itself.
Written by the NetSenX Team at TriStiX S.L. Questions: [email protected].