Think for a moment about all the devices that connect to your company’s network today. The salesperson’s laptop who works from home three days a week. The desktop computer shared by two members of the administration team. The personal laptop an employee uses when theirs is being repaired. The company mobile phone the operations director uses to answer emails at the airport.
Each of those devices is an endpoint. And each one is a potential entry point for an attacker.
In the traditional work model, with all employees in the same office and all devices within the same network perimeter, securing those access points was relatively manageable. In the hybrid model that most companies have adopted, that perimeter has disappeared. And with it, the security logic that underpinned it.
This article explains what has changed in endpoint security, why traditional antivirus falls short against current threats, and how tools like Heimdal allow IT teams in mid-sized companies to have real protection without needing a twenty-person security department.
What is an endpoint and why does it matter so much now?
In computer security, an endpoint is any device that connects to the corporate network: desktop computers, laptops, smartphones, tablets, servers and, increasingly, IoT devices such as smart printers, cameras or access control systems.
What makes endpoints especially critical is that they are the direct point of contact between users and the company’s systems. They are where emails are opened, files are downloaded, confidential information is entered, and where employees, with the best intentions, make decisions that can have significant security consequences.
Seventy percent of successful security breaches begin at an endpoint. Not on the server, not on the network, not in the cloud: on a user device. And in a hybrid work environment, where those devices move between corporate, home, and public networks, the level of exposure is substantially higher than it was five years ago.
Why traditional antivirus is no longer enough
Conventional antivirus software works by comparing files against a database of known threats. If the file matches a registered signature, it blocks it. If it doesn’t match, it lets it through.
This model has a fundamental problem that attackers systematically exploit: it can only detect what is already known.
The techniques behind most serious incidents in medium-sized companies are designed precisely to circumvent that logic:
Fileless attacks. Instead of installing an executable that antivirus software can scan, the attacker executes malicious code directly in system memory, using legitimate operating system tools like PowerShell. There is no file to scan, no signature to compare.
Polymorphic malware. The malicious code mutates automatically with each infection, generating a different signature each time. The antivirus that detected the previous version does not recognize the new one.
Exploitation of unpatched vulnerabilities. If a system has a known vulnerability and the patch hasn’t been applied, an attacker can exploit it without installing anything. Antivirus software doesn’t intervene because there’s no malware: there’s simply a vulnerability being exploited.
Social engineering and advanced phishing. The attacker doesn’t need to bypass antivirus software if they can trick the user into running the malicious code. A well-designed email that mimics internal communications can deceive even experienced employees.
Compromised credentials. If an attacker obtains legitimate credentials, they can access systems without triggering any alerts. They are using authorized access.
The practical result is that antivirus software remains useful as a first line of defense against generic and known threats, but is completely insufficient as the sole layer of protection in today’s threat environment.
The three dimensions of modern endpoint security
The industry’s response has been to develop a broader approach that works in three simultaneous dimensions:
Prevention. Blocking threats before they can be executed. This includes enhanced antivirus with behavior-based detection and AI, DNS filtering, application control, and patch management that eliminates vulnerabilities before they can be exploited.
Detection and response. Identifying threats that manage to bypass the prevention layer and acting on them as quickly as possible. Modern tools continuously monitor process behavior, identify anomalies, and can respond automatically: isolating the compromised device, stopping malicious processes, and reverting changes.
Centralized visibility and management. Gain a unified view of the security status of all endpoints from a single dashboard: which devices have pending patches, which threats have been detected, and which devices do not comply with defined policies.
This three-dimensional approach is what distinguishes modern endpoint protection platforms from conventional antivirus.
The specific problem of hybrid work
Hybrid work has not created new threats, but it has amplified existing ones for three specific reasons:
Devices leave the protected perimeter. When an employee works from home or a public location, their device connects to networks that the IT team doesn’t control or monitor. These networks may have insecure configurations or active attackers waiting to intercept traffic.
The attack surface is larger and more dispersed. With employees in multiple locations and devices moving between networks, the number of potential entry points multiplies. Every point that isn’t monitored is a blind spot.
Management becomes more complex. Applying patches, updating configurations, enforcing policies, detecting non-compliant devices: all of this is more complicated when devices are not always connected to the corporate network or always accessible to the IT team.
The practical consequence is that a company with an acceptable level of security when all its employees were in the office may have significant gaps in the hybrid model, without having deliberately changed anything.
Heimdal: endpoint protection designed for scalable IT teams
Heimdal is a Danish cybersecurity platform built around a specific idea: to offer medium-sized IT teams the security capabilities that were previously only available to large corporations, in an integrated platform and without requiring a specialized security team to operate it.
Its architecture is organized into modules that cover the three dimensions of modern endpoint security, all manageable from a single control panel.
DNS and traffic filtering
The DNS filtering module analyzes all name resolution requests generated by devices and blocks access to malicious domains, phishing sites, and command and control infrastructure used by malware. It acts as a first line of defense, intercepting many threats before they can establish any connections.
The important thing is that it works regardless of whether the device is on the corporate network or at the employee’s home, without any additional configuration by the user.
Patch and vulnerability management
One of the most exploited vectors in mid-sized companies is unpatched vulnerabilities. This isn’t because IT managers are unaware of the problem, but because manually managing patches in an environment with dozens or hundreds of devices is extremely time-consuming and prone to errors.
Heimdal automates this process: it detects which patches are pending on each device, downloads them, and deploys them silently, without interrupting the user’s work. The window of exposure between the publication of a vulnerability and the application of the patch is reduced from weeks to hours.
Endpoint protection and threat detection
The protection module combines signature-based detection with behavioral analysis and artificial intelligence to identify both known and unknown threats. It doesn’t just analyze files at the time of download; it continuously monitors the behavior of processes on the system.
When it detects anomalous activity, it can respond automatically: isolate the process, quarantine the file, notify the IT team, and provide the necessary forensic context to investigate the incident.
Privilege management and application control
One of the most effective practices for reducing the impact of an attack is the principle of least privilege: users only have access to the resources and permissions they need for their work. Heimdal makes it easy to implement this principle with tools that control which applications can run, what permissions users have, and how privilege escalations are handled when someone needs additional permissions.
Unified dashboard and centralized visibility
Perhaps the most valued feature is visibility: a single dashboard from which to view the security status of all endpoints, pending patches, detected threats, non-compliant devices, and active alerts. No need to switch between different tools or cross-reference data from separate sources.
This centralization is what makes it possible for a small IT team to manage the endpoint security of an organization of one hundred or two hundred people without being permanently overwhelmed.
How does Heimdal compare to traditional antivirus software?
The most important difference is not in any specific function, but in the approach.
Traditional antivirus software is a one-off tool that reacts to a known threat. Heimdal is a platform that works continuously and proactively, covering multiple attack vectors from prevention to response.
In practical terms, Heimdal doesn’t simply replace the antivirus: it replaces the antivirus plus the patch management tool plus DNS filtering plus application control plus privilege management, integrating everything into a single lightweight agent and a single management console.
For IT teams that currently use three or four different tools to cover these functions, consolidation also has a significant impact on management time and operational complexity.
When does it make sense to consider change?
There are clear signs that the current level of protection is no longer sufficient for the context in which the company operates:
— You have employees working remotely or in a hybrid model and you have no visibility into the security status of their devices outside the corporate network.
— Your patch management process is manual or semi-manual, and you know that there are devices with pending updates that have been pending for weeks.
— You use more than two endpoint security tools and the team spends significant time cross-referencing information between them.
— You have had phishing or malware incidents that the antivirus did not detect or detected too late.
— You are in the process of ISO 27001 certification or GDPR compliance and need to demonstrate documented technical controls over endpoints.
— Your clients or strategic partners are asking you for guarantees about the level of security of your infrastructure.
If two or more of these conditions are met, the gap between the current level of protection and the actual business risk probably justifies a review of the strategy.
Implementation: what to expect from the process
A common concern when evaluating a new platform is the impact of implementation. With Heimdal, the process is incremental. The agent is installed on devices silently and without interrupting user work, either manually, through tools like SCCM or Intune, or via Group Policy in Active Directory environments.
Initial setup can be done gradually, starting in monitoring mode to understand the environment before implementing restrictions. The typical time to have the platform operational in a medium-sized environment ranges from a few days to a few weeks, depending on the complexity of the environment and the level of policy customization.
Conclusion: Endpoint security is not a product, it’s a strategy
Hybrid work has meant that the question is no longer “Do we have antivirus?” but “Do we know what is happening on all of our company’s devices, at all times, regardless of where they are connected?”
Answering that question affirmatively requires continuous visibility, proactive vulnerability management, traffic filtering, and the ability to respond when something happens. Tools like Heimdal are designed precisely for that: to give mid-sized IT teams that capability, without the complexity of managing multiple independent tools and without requiring a dedicated, full-time security team.
Because in cybersecurity, the difference between a managed incident and a crisis isn’t always determined by the threat itself. Sometimes it’s determined by how long it takes to recognize it.
