Attackers don’t need better exploits: They have better reconnaissance

Cyber attacks are not accelerating because exploits are improving.  They are accelerating because reconnaissance is improving.

Attackers already scan the internet continuously. Tools such as Nmap, Masscan and platforms like Shodan allow vast numbers of systems to be discovered and catalogued automatically. Large portions of the internet are probed every day looking for exposed services, vulnerable technologies and misconfigured infrastructure.

What has historically remained manual is understanding what those discoveries actually mean.

Scanning tools can identify open ports, service banners and protocol responses. They cannot explain the significance of those findings. Human analysts still perform that step: determining what type of system has been discovered, how it fits into an environment, and whether it represents a viable path into a network.

A recent incident in Poland illustrates why this distinction matters.

In December 2025, coordinated cyberattacks targeted multiple wind and solar farms as well as a combined heat and power facility supplying heat to hundreds of thousands of residents. Initial access was obtained through exposed Fortinet remote access infrastructure used by operators of the facilities. After gaining access, attackers moved through supporting IT systems before deploying destructive malware intended to disrupt operational environments.

The attack did not begin with an exploit against industrial control systems. It began with the discovery of infrastructure that provided a path into them.

In practice, operational environments rarely fail because a control system vulnerability was discovered and exploited directly. More often, compromise begins through supporting infrastructure: remote access gateways, vendor connectivity or engineering workstations that bridge corporate and operational networks. Once those systems are understood, the rest of the environment becomes far easier to navigate.

This pattern appears repeatedly across incidents affecting critical infrastructure. Understanding the structure of an environment is often more valuable than identifying a single vulnerability.

Vulnerability intelligence accelerates this process further.

When vulnerabilities are added to CISA’s Known Exploited Vulnerabilities (KEV) catalogue, they signal something important to both defenders and attackers: exploitation has already been observed in the wild. For many organisations this triggers internal processes — vulnerability reviews, change management discussions and the scheduling of patch cycles.

Attackers operate on a different timeline.

They do not ask when the next patch window is. They begin looking immediately for systems that match the affected technology. At that point the challenge is not finding a vulnerability. It is identifying environments where that vulnerability provides meaningful access.

Reconnaissance allows attackers to answer that question quickly. Exposed remote access systems, externally reachable management interfaces and infrastructure that appears to bridge IT and operational environments can all become priority targets once they are identified.

What is changing now is the speed at which reconnaissance can be interpreted.

Large language models and similar analytical tools are particularly effective at identifying patterns across structured information. When provided with scan outputs and contextual data, they can begin to generate hypotheses about the role of systems within an environment. A host exposing SSH, HTTPS and Modbus services, for example, may suggest something very specific to an experienced analyst: an engineering workstation or gateway interacting with industrial control systems.

The value here is not autonomous exploitation. It is automated reconnaissance triage — the ability to quickly understand what a discovered system is likely to be and whether it represents a valuable entry point.

Large-scale scanning already occurs constantly across the internet. Automated interpretation simply makes it easier to identify which discoveries matter.

For organisations operating critical infrastructure, the implications are straightforward. Compromise rarely begins with the control systems themselves. It begins with supporting infrastructure that provides a path into them.

Reducing unnecessary exposure therefore remains one of the most effective security controls available. Systems that are not externally visible cannot easily be indexed, analysed or prioritised by reconnaissance tooling.

Attackers move at the speed of discovery.

Defenders often move at the speed of patch cycles.

Closing that gap begins by reducing what the internet can see — and what it can learn from what it finds.