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April 2, 2023

Enhancing Security Teams with AI-Powered Email Solutions

Discover email-based attack challenges & how AI security solutions can tackle these attacks with autonomous action, optimized workflows, and user visibility.
Inside the SOC
Darktrace cyber analysts are world-class experts in threat intelligence, threat hunting and incident response, and provide 24/7 SOC support to thousands of Darktrace customers around the globe. Inside the SOC is exclusively authored by these experts, providing analysis of cyber incidents and threat trends, based on real-world experience in the field.
Written by
Dan Fein
VP, Product
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02
Apr 2023

The modern security team faces challenges on all fronts – it is too often overstretched dealing with an increased attack surface, enabling workforces for secure remote work, and managing multiple security tools to protect that workforce. Added to that, the surge in more sophisticated phishing campaigns – now supported by AI tools – means that it’s harder than ever to pre-empt attacks. 

The needs of the security team should be a key consideration when deploying an email security solution, as it’s them who will be accountable for the success and maintenance of the product. Minimizing time spent inside the user interface – through trusted detection and response technology combined with intuitive reporting and optimized workflows – should be front of mind for vendors in order to assure teams of their value.

Taking security teams off the frontline 

No team should be spending all of their time maintaining email security policies, releasing emails that shouldn’t have been held, or holding back emails that should have been – all the things that traditional email security solutions have almost forced them to become accustomed to. A day in the life of an admin shouldn’t include tens – and certainly not hundreds – of minutes spent in their email security dashboard. 

At the moment, teams are logging in far too often, and when they do, they’re forced to make individual decisions about safe listing and blocking domains, or releasing emails. These can lead to the creation of blanket rules that open up future windows for attackers – unintended consequences that ultimately create more work in the future. This type of hand-to-hand combat puts security teams on the frontline, when their time could be much better spent doing the high-level strategic work humans are best at.  

Understanding You: A Different Approach to Email Security

In today’s discussions about email security, there is a consensus that relying on a gateway is no longer feasible. The new era is one of ICES (Integrated cloud email security) solutions and other tools leveraging artificial intelligence and APIs. But there's no point adopting new technology with an old philosophy – and most of these solutions use AI to automate the same old approach: looking at past attacks to try and stop the next. 

This is where Darktrace/Email takes a fundamentally different and unique approach. It’s not just about using AI; it’s about using it in the right capacity. Our AI understands you – learning where users log in from, who they email, their behavior throughout the day – to tailor the detection and response process according to their individual profile. There’s no point withholding an email if only a tiny element of it poses a risk – Darktrace/Email takes the least aggressive action required to neutralize a threat. Instead of a blanket allow-deny criteria, it can rewrite links or withhold attachments based on its knowledge of the user’s normal inbox activity. Stopping malicious emails while allowing legitimate emails through – with risky elements neutralized – lifts security teams out of the fire-fighting activities described earlier and frees up their time for more strategic and valuable decision-making.

This is going to get me to reduce my current email security stack… this is going to take it to that level that I need it to”

- Early Look Customer, Darktrace/Email 

Account Takeover 

Embedded account takeover protection is an essential component of modern email security. Security teams need visibility not just over email breaches but of what happens once an attacker has control of an inbox, particularly in the most damaging use cases like Business Email Compromise (BEC) and ransomware. This entails understanding a user’s behavior in their inbox, outbound emails and beyond into their wider account activity. Darktrace captures a user’s activity across email and their Microsoft or Google account in a single pane of glass – detecting and countering all of the markers that could signify a compromised account.  

Insights from other cloud applications and network devices gleaned from Darktrace's wider visibility of the business can bring a 360° understanding of the user, further enhancing detection of account takeover and other harmful activity.

Figure 1: A 360° understanding of a user reveals their digital touchpoints beyond Microsoft

What ‘user-friendly’ actually looks like 

The best user interface is one that you never have to log into. In an ideal world, teams are able to visit their tools less frequently because intelligent AI is automating work previously done by humans. This is made possible by Darktrace’s precision detection and response technology, which takes appropriate action on emails and accounts to neutralize threats without disrupting day-to-day business operations. 

The second-best user interface is one where you can quickly log in and get key insights fast, whether that’s regarding an action taken or the current activity of a user – and then get out. Darktrace/Email enables teams to get key information quickly, at both a high and granular level.  The dashboard offers immediate insights into users and emails, with a real-time snapshot of active user identities, targeted user and actioned emails, segmented by type of attack. 

At every touchpoint, Darktrace reduces friction with optimized workflows. From being able to quickly identify VIPs to safely previewing links and attachments, security teams can get the information they need without needing to switch between windows or navigate inaccessible interfaces. Explainable AI gives users natural-language summaries of individual emails or the overall health of an email environment, and simplified action flows allow security teams to personalize security for different employees – for example, sending VIPs a unique notification, or taking extra precautions around employees who work in accounting. Taken together, this meaning that admins can spend even less time managing policies. 

Figure 2: Darktrace/Email dashboard displaying key information about the email environment in a single pane of glass

The ideal interface is also the one that’s the most accessible to you. The mobile app guarantees convenience for security teams, making available all the main functions of the interface for on-the-go analysis at any time or place. Teams can travel or leave the office while retaining the peace of mind that if a critical incident was to occur, they would be able to get instant visibility on the data and take action without needing to get back to their desks.  

Figure 3: Security admins are able to preview, analyze, and act on emails directly from the Darktrace Mobile App

With every passing day, the security team can rest easier. Every activity is taken into account to help the AI tune and adapt over time to become even better at detecting and responding to threats.   

Having email on the app is going to be game changing” 

- Early Look Customer, Darktrace/Email 

Getting the full picture

Most often, email is the entry point from which a threat actor moves stealthily throughout an organization collecting information and assets. Most solutions look at email in isolation, without prioritizing or connecting disparate events into a wider pattern. 

In contrast, Darktrace/Email integrates seamlessly with Darktrace's Cyber AI Analyst, a technology that conducts autonomous enterprise-wide investigations around every alert produced by the wider Darktrace platform. Through this integration, malicious email activity is analyzed and displayed in the context of the full security incident to which it belongs. As a result, security teams can see why and how a wider problem might have originated in email and spread to other apps, endpoints, or the wider corporate network.

Empowering employees to take an active role in security

The role of the security team can be made more difficult if employees take a lax or disengaged approach to security – or if a user is given too much control, and has the ability to make potentially dangerous decisions. Training employees on security procedures is another to-do which can easily fall to the bottom of the agenda during busy periods, especially as point-in-time phishing simulations have proven to be not particularly effective. 

To this end, Darktrace/Email uses Explainable AI to say in natural language what it thought about an email, and delivers its findings not just to the security team, but optionally to the wider workforce as well. Delivered in the form of contextual banners in emails, periodic digests, or directly in Outlook, these insights transform security education from a quarterly or yearly exercise into real-time security awareness. Our next blog will dive deeper into how employee engagement can support the security team’s efforts and harden defenses throughout the organization. 

Because Darktrace is built on a fundamentally different approach, it not only stops novel and targeted sophisticated attacks but allows legitimate emails to flow through. This is what makes it a truly set-and-forget technology, with the AI taking on much of the heavy lifting previously undertaken by security teams. 

Inside the SOC
Darktrace cyber analysts are world-class experts in threat intelligence, threat hunting and incident response, and provide 24/7 SOC support to thousands of Darktrace customers around the globe. Inside the SOC is exclusively authored by these experts, providing analysis of cyber incidents and threat trends, based on real-world experience in the field.
Written by
Dan Fein
VP, Product

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OT

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October 21, 2026

Beyond the Fridge: Exposed Industrial Control Systems

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Introduction

In October 2026, hundreds of supermarkets across France were reportedly affected by a cyberattack targeting their refrigeration systems. According to public reports, the attackers gained access to internet-connected controllers and modified their settings, forcing refrigeration units into high and extremely low temperatures and causing significant disruption. Total losses have been reported to reach several million euros.

The incident drew attention to the security of industrial refrigeration systems, particularly older devices with exposed management interfaces and known vulnerabilities.

The exact details of how the attackers gained access have not been confirmed, however it is speculated that the public-facing web server could be accessed with the username “admin” and password being the current date. Researchers from Claroty’s Team82 identified a vulnerability in Danfoss AK-SM 8xxA Series in 2025, “CVE-2025-41450", allowing for administrative access using a time-based “code-of-the-day" for authentication [1].

Default credentials, outdated firmware and publicly accessible administrative interfaces have been an issue for years. And yet these systems continue to appear in internet scans and require little sophistication to gain admin access. A simple search of internet-connected devices shows a range of exposed devices from Programmable Logic Controllers (PLCs) and remote gateways, to, yes, more fridges.

Darktrace malware researchers identified hundreds of IoT and OT devices publicly exposed on the internet, many of which are configured with no authentication, weak credentials, or default credentials. As shown in Figure 1, an exposed Copeland XWEB web interface, used to manage Dixell equipment, including refrigerators, can provide the ability to remotely control connected devices.

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Figure 1: Copeland XWEB interface used to control systems including refrigerators and air conditioning.

However, it’s not only fridges; web management interfaces for industrial controls are also publicly accessible, often protected only by weak credentials. Figure 2 shows an example of a publicly exposed WAGO interface. The WAGO management interface is a configuration and administration panel for controllers. Through it, a logged-in user can view device details and diagnostics, manage user accounts and passwords, update firmware, back up or restore the full configuration, set the clock, and manage SD card storage. While it typically doesn’t manage switch outputs or read live process values, someone with access could still disrupt operation by changing network or Modbus settings, loading bad firmware or configurations, or by resetting passwords and enabling insecure services.

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Figure 2: WAGO Management interface.

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The issue extends beyond management interfaces. During our research, we identified publicly accessible web interfaces belonging to PLCs, including Rockwell Automation Allen-Bradley devices. In each case, the risk arises from how the devices have been deployed and configured, not from a flaw in the vendors’ products.

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Figure 3: Web interface for Allen-Bradley CompactLogix controller.

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Figure 3 shows the web interface of an Allen-Bradley CompactLogix controller. Unlike the previous examples, this interface provides a view into the controller's operation, including running tasks, network connections, memory usage and diagnostic information. Rockwell Automation's CompactLogix controllers are commonly used to automate industrial processes, from manufacturing and packaging lines to water treatment and material handling systems. Depending on their configuration, these controllers can operate motors, pumps, valves and other physical equipment.

Although in this example the interface shown does not provide direct control over the PLC's logic, it exposes information about the model, firmware, network layout, and connections, which is useful reconnaissance for a bigger attack.

The concern is not necessarily that every exposed interface allows an attacker to immediately manipulate industrial processes. However, these devices are accessible from the public internet in the first place, providing information about systems that may be responsible for controlling physical equipment.

The attacks on refrigeration systems in France highlight the consequences of poorly secured industrial devices. As demonstrated throughout this research, publicly accessible management interfaces are not limited to refrigeration controllers but extend to PLCs and other systems used to manage industrial equipment.

Finding these devices requires little effort. Internet scanners make it possible to identify publicly exposed interfaces quickly, and in some cases these interfaces rely on publicly documented default credentials or have no authentication at all. As attackers increasingly use AI tools, such attacks may be identified and carried out faster and at a greater scale.

The consequences of this access depend on the device and the functionality exposed. While some interfaces provide little more than diagnostic information, others allow users to modify configurations, disrupt communications, or change settings that affect physical equipment. In industrial environments, this can result in operational downtime, damaged equipment and financial losses.

Weak passwords, default credentials and exposed administrative interfaces are not new security issues. Yet their continued presence on internet-connected industrial systems demonstrates how easily preventable weaknesses can leave physical operations vulnerable to attack.

Exposed devices often come from third-party suppliers and contractors, who frequently install refrigeration controllers, gateways and PLCs without the organization ever being aware they are connected to the internet. Asset visibility remains an important foundation, but organizations should assume that some unknown assets and services will exist. Effective security therefore also depends on continuous monitoring, anomaly detection, network segmentation and rapid response, so that risky exposure and unusual activity can be identified and addressed before it becomes disruptive.

Darktrace helps security teams gain visibility across IT and OT and respond to risks: https://www.darktrace.com/products/operational-technology.

Copeland, Dixell, WAGO, Rockwell Automation, Allen-Bradley and CompactLogix are trademarks of their respective owners. Their use here is for identification only and does not imply any affiliation with or endorsement by those owners.

References

1.        https://claroty.com/team82/research/freeze-the-controller-defrost-the-food-uncovering-vulnerabilities-in-danfoss-refrigeration-controllers

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About the author
Tara Gould
Malware Research Lead

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Network

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October 20, 2026

Why Kubernetes Security Needs A Behavioral Approach

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Kubernetes has become a foundational technology for modern cloud-native infrastructure. It can orchestrate everything from customer-facing applications to data pipelines and, increasingly, AI workloads. This is due to the highly scalable nature of Kubernetes, making it cost efficient and reliable.

Gartner projects that by 2028, 95% of new AI deployments will run on Kubernetes, up from less than 30% today1. However, the same qualities that make Kubernetes powerful also make it uniquely challenging to secure, leaving many organizations with limited visibility into their clusters. This lack of visibility increases risk - it’s difficult to secure what you can’t see.

However, this risk is often looked at as purely a posture management challenge. While Cloud Security Posture Management (CSPM) solutions can tell you how a cluster should be configured, they don’t tell you what it is doing in real time. This requires runtime behavioral monitoring of clusters to detect active threats.

Yet existing approaches to securing Kubernetes by most Cloud Detection and Response (CDR) and Network Detection and Response (NDR) vendors often have limited coverage or require a third-party integration to forward traffic and metadata. This means that capabilities can be limited and detections can lack the context of the wider environment, which slows down triage, investigation and response.

Why Kubernetes is hard to secure

Traditional security tooling was built for persistent, long-term infrastructure such as servers and virtual machines with fixed identities that last months or years. Some elements of Kubernetes environments can have a much shorter lifespan, breaking many assumptions those tools rely on:

  1. Increased complexity
    1. Kubernetes environments can be complex in comparison to traditional infrastructure, with many different elements to consider such as nodes, clusters, containers, pods and the workloads themselves.
  2. Ephemeral by design
    1. Kubernetes pods can spin up and terminate in seconds. A container that was compromised may no longer exist by the time a deeper investigation is required, leaving no artifact to analyze. This poses a unique challenge for security operations.
  3. Weaker workload boundaries
    1. Kubernetes containers use lightweight, shared-kernel isolation rather than separate virtual machines, improving efficiency but reducing separation between workloads and the host. As a result, a compromised container may have a greater potential impact on the node and neighboring workloads than a compromised virtual machine (VM).2
    2. Recent vulnerabilities have shown that threat actors can escape a container and gain access to the underlying host.3, 4
  4. Everything is API-driven
    1. Dozens or hundreds of microservices communicate over internal APIs, and the Kubernetes control plane itself is an API. This creates a large and dynamic attack surface, making it difficult to distinguish legitimate activity from malicious behavior.
    2. Without identity-aware runtime visibility, threat actors can move laterally between pods and exploit misconfigured role-based access controls (RBAC) with little chance of detection.

Rising to the challenge of securing Kubernetes

With the release of Darktrace 7.2, Darktrace / HYBRID NETWORK can extend behavioral security into Kubernetes, delivering visibility, detection and response capabilities across runtime activity. Darktrace addresses the challenges of securing Kubernetes environments in several ways.

Behavioral detection, not static rules

Many Kubernetes runtime tools rely on predefined rules and signatures - a fixed list of “bad” behaviors to match against. That approach struggles with novel attacks and generates noise at scale. Darktrace takes a different approach: our Adaptive AI builds a Unique Behavioral Profile for each organization from the ground up, learning the normal behavior of every workload, node and identity in your cluster. It then uses this understanding to detect meaningful deviations from expected behavior, which serves as the basis for surfacing suspicious and malicious activity.  

A pod reaching out to an unfamiliar destination, an unexpected executable launching inside a workload, or an identity performing an action it has never performed, all surface as anomalies without anyone having to write a rule in advance.

Darktrace surfaces unexpected Kubernetes activity that does not align with an organization’s Unique Behavioral Profile

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Visibility across the network, the process, and the control plane

Darktrace monitors Kubernetes at three levels that together provide comprehensive runtime visibility:

  1. Network-layer
    1. Traffic between pods, across nodes and out to the internet. This helps to detect lateral movement and unusual connectivity, whether internal or external.
  2. Process-layer
    1. What is executing inside your containers. If a process reads a sensitive credential file or spawns an unexpected shell inside a production pod, Darktrace can identify that activity and use it as context for further detections.
  3. Control plane
    1. Activity against the Kubernetes API itself: someone executes a command in a running pod, RBAC changes, or unusual administrative actions. Many high-impact security events involve the control plane, an area that is often less visible to solutions that only analyze or scan network-layer telemetry.

Misconfiguration and vulnerability awareness

Runtime detection is strongest when combined with posture and exposure management. Darktrace surfaces risky pod configurations, such as privileged containers, host networking, and over-permissive service accounts as workloads are deployed, and links CVEs from images to the workloads running them. Security teams can go beyond simply knowing that a vulnerability exists and see exactly where it is in the cluster. When combined with behavior-based detections, this provides invaluable context that can help prioritize incidents and proactively identify areas that need further attention. For example, anomalous workload behavior on its own might not be very interesting to a security team at first, but if that same workload is known to host sensitive data, is known to have critical vulnerabilities associated with it, or is publicly accessible, then this narrative becomes much more suspicious and demanding of their attention.

Darktrace highlights Kubernetes misconfigurations such as privileged containers, host networking, and missing security controls, helping teams prioritize runtime alerts with valuable exposure and risk context

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Response, tailored to Kubernetes

Detection is most effective when paired with response. Darktrace can take precise actions on Kubernetes workloads, including blocking a malicious connection at the pod level, helping to safely contain threats while security teams investigate. Response actions can be taken fully autonomously or via a human-in-the-loop process, which is completely configurable depending on the desired level of autonomy and scope. Darktrace is expanding the number of Kubernetes-native response actions to give customers even more flexibility when containing threats.

Forensics that survive the workload

Because containers are so short-lived, evidence disappears fast and this can make it very difficult to answer questions related to the initial detections. Darktrace solves this with Forensic Acquisition & Investigation capabilities that extend to Kubernetes containers, allowing investigations to be triggered manually by an analyst, or automatically from an alert, preserving evidence before the workload is gone.

For incident responders, this addresses a key challenge in container security: being able to answer “what actually happened?” after an ephemeral workload has vanished.

One platform, not another silo

Kubernetes doesn't exist in isolation, and neither should its security. Darktrace correlates cluster activity with the surrounding cloud environment, including AWS, Azure and GCP identities, network activity and cloud assets, allowing analysts to pivot between a Kubernetes workload and its wider context. A single anomalous action can be traced from the control plane to the pod, and from the pod to the cloud identity behind it, all within a single investigation workflow. This can also include alerts from other areas of hybrid infrastructure or third-party sources where relevant, adding more context to investigations and speeding up workflows for human analysts.

Built to deploy easily

Operational complexity can be a barrier to security adoption. Darktrace / HYBRID NETWORK for Kubernetes installs with a single command, and for teams that manage their infrastructure as code, it supports raw manifests so the deployment can live in a Git repository and be managed through existing GitOps workflows. The same deployment approach works across Kubernetes environments in AWS, Azure, Google Cloud, and on-premises infrastructure. Early adopters of Darktrace’s Kubernetes capabilities have highlighted the simplicity of deployment and time to value.

Darktrace can deploy across your Kubernetes environment and wider hybrid infrastructure, while also providing visibility into Kubernetes deployment structure and status

Next steps

Kubernetes environments are dynamic, ephemeral and API-driven in ways that challenge traditional security tooling. With Kubernetes usage increasing due to widespread AI adoption, it is essential to secure Kubernetes environments as part of securing what AI can do. Darktrace / HYBRID NETWORK addresses these challenges by learning normal behavior in Kubernetes environments across network, process and control-plane layers, identifying meaningful threats and enabling targeted response. Combined with the context of wider hybrid infrastructure and forensic investigation capabilities, Darktrace provides visibility into both emerging threats and active incidents.

To see how Darktrace can help secure your Kubernetes environment and your wider hybrid infrastructure, get in touch to arrange your free trial. Existing customers can contact their Darktrace Account Team for more information about deployment options and licensing.

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Sources

[1] Gartner, Container Management research, 2025: "By 2028, 95% of new AI deployments will use Kubernetes, up from less than 30% today."  https://www.gartner.com/en/documents/7913109. (quote reproduced under Gartner reprint at https://www.kubermatic.com/magic-quadrant-and-critical-capabilities-for-container-management/)

[2] Palo Alto Networks (Unit 42) – Container Breakouts: Escape Techniques in Cloud Environments. https://unit42.paloaltonetworks.com/container-escape-techniques/

[3] runC container-escape vulnerabilities (CVE-2025-31133, CVE-2025-52565, CVE-2025-52881), disclosed by a SUSE researcher on November 5, 2025. https://www.securityweek.com/runc-vulnerabilities-can-be-exploited-to-escape-containers/

[4] NVIDIAScape (CVE-2025-23266), CVSS 9.0. https://nvidia.custhelp.com/app/answers/detail/a_id/5659

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About the author
Elise Longhurst
Senior Product Executive
Your data. Our AI.
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