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Cybersecurity risks in water infrastructure have consequences that reach far beyond systems and networks.

Across the sector, the systems responsible for treatment and distribution are becoming more connected. Pumps, sensors and control environments that once operated in isolation are now linked to wider networks, often in the name of efficiency or modernization.

The problem is that these systems were never built with continuous exposure to cyber threats in mind and connecting them has introduced new attack surfaces that are difficult to maintain visibility of and control.

At the same time, many facilities have crept towards an increasingly blurred line between IT and operational technology (OT). Driven by incremental needs and very practical limits on systemic refresh, these systems have been added to and grown more complex over time rather than being designed securely from the ground up.

As a result, they become more tightly interconnected, with access stretching further across networks and systems than it should. Once an attacker breaches a system, it becomes far easier to move laterally across the network and get closer to critical infrastructure.

Meanwhile, cyber threats continue to encroach on the water sector, with attacks becoming increasingly frequent and their potential impact is hard to ignore. Disruptions to drinking water treatment or control systems can quickly escalate, interrupting supply or affecting water quality and, in turn, the communities that depend on them.

Structural challenges in securing water systems

Securing water infrastructure is made more difficult by the operational realities many providers face. Technology environments have expanded over time, often without dedicated cybersecurity resources growing at the same pace, making it harder to maintain consistent oversight across increasingly ageing and disparate systems.

Many organizations are also balancing modern hyper-connected digital management expectations with the ongoing operation of originally isolated, long-established systems. This places additional pressure on teams responsible for maintaining both resilience and day-to-day continuity.

Another persistent challenge is the divide between IT and operational technology (OT) teams. Because these environments have traditionally evolved separately, with different design approaches, responsibilities, priorities and expertise, they are not always closely aligned, which can slow decision-making and create gaps in visibility during an incident.

In smaller providers, cybersecurity responsibilities may sit with operational staff whose primary expertise lies in running facilities rather than managing cyber risk. Larger organizations may have more specialized cyber teams, but greater separation between functions still introduces coordination challenges and the risk of operational blind spots.

Connectivity without constraint

The growing use of cloud computing platforms and remote access tools has brought clear operational advantages to critical infrastructure like water systems. However, it has also reinforced a default position of keeping systems online at all times, often without a genuine operational imperative for continuous connectivity.

This “always-connected” approach can unnecessarily increase exposure, particularly as more assets become reachable across wider networks. Without clear control over the time windows when systems need to be accessible, organizations may be creating more risk than expected, certainly more than is required.

A stronger, resilient approach starts with recognizing that security grows by making connectivity intentional. Not every system needs to remain online continuously, and limiting unnecessary access significantly improves security outcomes.

This can be achieved by creating stronger separation between critical systems and the wider network, using controls that allow connections to be enabled only when required while maintaining essential operations. In this model, connectivity is actively managed to define resilience on demand.

Containment as a first line of defense

In the event of a vulnerability or compromise, response speed is critical, notably in environments where interconnected systems enable threats to spread rapidly across the network. Without effective connection controls in place, attackers can exploit this unconstrained accessibility to extend their reach before a full response is underway.

The ability to isolate systems in real time helps change this state. Segmenting critical parts of the network helps limit lateral movement, and deeply segmenting down to high criticality digital elements enables organizations to contain threats far more substantially and focus their efforts on speeding up the incident response.

Having this level of control helps limit the spread of disruption and supports a more structured response. It also creates clear, demonstrable evidence of how risk is being managed - something that’s becoming increasingly important as regulatory scrutiny and cyber insurance requirements become more demanding.

Moving to controlled access

The most resilient model possible with physical connection control treats access to critical systems as fully conditional. Rather than keeping them permanently online, connections can be limited to where, when and why they are required for business reasons. As risk levels change, this can be refined or tightened at will.

This lowers both risk and potential impact, minimizing loss, while preserving the flexibility required for day-to-day operations.

For water providers, deliberately managing connectivity and segmenting networks at an infrastructure level should be a priority for resilience. Clearer boundaries and reduced unnecessary access make it easier to protect infrastructure that plays a vital role in public safety.

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The patient: A 6-year-old boy in the Netherlands

The symptoms: The child was receiving a blood transfusion as a treatment for lymphoblastic leukemia , a type of blood cancer that originates in bone marrow, when he experienced a severe allergic reaction. His blood pressure dropped, and he developed a rash. Swelling appeared around his lips, tongue and eyelids, and he had difficulty breathing. This type of allergic response, known as anaphylaxis , can be life-threatening.

What happened next: Doctors treated the patient with the hormone epinephrine (also called adrenaline), which quickly reduces tissue swelling caused by anaphylaxis while also raising blood pressure and easing restricted breathing. The child recovered after about 30 minutes.

His doctors collected blood samples immediately after the reaction, and these contained unusually high levels of a type of protein called mast-cell tryptase , which is released by certain immune cells during anaphylaxis. However, the physicians were puzzled as to what had caused the extreme reaction, they wrote in a report of the case .

The diagnosis: The patient's mother told the doctors that her child had a similar allergic response to peanuts when he was about 1 year old, and since then, they'd omitted peanuts from his diet. The doctors then contacted the five blood donors who had provided the boy's most recent transfusion, and they learned that three of the five donors had eaten handfuls of peanuts the evening before they donated blood.

A protein in peanuts called Ara h2 is one of the main allergens that set off allergic reactions in people's immune systems. One of the building blocks of the allergen, called DRP-Ara h2, takes more than 24 hours to digest and remains capable of binding to receptors and triggering an allergic response throughout that time.

To see if this allergen could have played a role in the patient's reaction, the doctors performed another blood test that detects antibodies and is used for identifying allergic sensitivities. The test confirmed that the patient was allergic to peanuts and that antibodies against Ara h2 and DRP-Ara h2m were present in his blood post-infusion. These antibodies would have been produced in response to Ara h2 entering the bloodstream.

"These data are consistent with the hypothesis that the consumption of peanuts by the donors before blood donation provided the trigger for this patient's transfusion reaction," the doctors reported.

The treatment: The patient didn't require any further treatment after the epinephrine that was administered immediately to reverse anaphylaxis.

What makes the case unique: Allergic reactions during blood transfusions are rare, although estimates of their exact frequency vary. Some estimates suggest that they occur in about 0.001% to 0.006% of transfusions, while others find they occur in 0.1% of transfusions .

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The triggers that set off these allergic responses are seldom identified. Prior to this case, other researchers suggested that blood transfusions could passively transfer food allergens from the donor to the recipient. Indeed, a growing body of evidence suggests that this may be more common than expected .

The child's response highlights the importance of identifying food allergies in people receiving blood transfusions, the child's doctors concluded, as well as the necessity of reviewing blood donors' recent diet histories to screen for potential allergens that could affect sensitive recipients.

"It is possible that allergens transferred in blood products to other patients have led to reactions that have gone unexplained and unreported," the doctors wrote in the case report.

This article is for informational purposes only and is not meant to offer medical advice.

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In raptures over Chapman’s Homer, Keats forgets

who discovered the Pacific—not stout Cortez

with eagle eyes but Balboa upon a peak in Darien.

Where he withdrew his handkerchief and saw

the death warrant drop of arterial blood,

a fate too deep for tears. Years, I was afraid

someone would refer to you in past tense,

and I’d sink like an animal past the dream

of evolution clean into disrepair. You lived—

this wasn’t that sort of tragedy. More like

a fairground after rain where heavy tents

had gauged large crevices. Franz said the silences

need to be loved, perhaps more than the words

that describe them in time. The dog cries

because it sets the human world in motion,

and I rise to stop the wailing, accusative at times.

__________________________________

Excerpted from If You Love That Lady: Poems . Copyright (c) 2026 by Maya C. Popa. Used with permission of the publisher, W. W. Norton & Company, Inc. All rights reserved.

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It has been a celebratory week for Final Fantasy fans as the beloved RPG's tenth installment marks the 25th anniversary of its original Japanese release. Developed by Square (then known internationally as SquareSoft), the 10th main entry in the Final Fantasy series launched for PlayStation 2 in Japan on July 19, 2001, before arriving in North America on December 18 of the same year. Entering development in 1999, this particular Final Fantasy game was a landmark release for the franchise , introducing full voice acting, dynamic facial animations, and fully realized 3D character and environment rendering.