{"id":6452,"date":"2026-03-09T10:03:35","date_gmt":"2026-03-09T10:03:35","guid":{"rendered":"https:\/\/www.d2na.com\/?p=6452"},"modified":"2026-05-27T14:06:19","modified_gmt":"2026-05-27T13:06:19","slug":"public-sector-cybersecurity-in-2026-a-perfect-storm-of-geopolitics-ai-and-legacy-risk","status":"publish","type":"post","link":"https:\/\/www.d2na.com\/index.php\/2026\/03\/09\/public-sector-cybersecurity-in-2026-a-perfect-storm-of-geopolitics-ai-and-legacy-risk\/","title":{"rendered":"Public Sector Cybersecurity in 2026: A Perfect Storm of Geopolitics, AI, and Legacy Risk"},"content":{"rendered":"<\/span> 5<\/span> mins read<\/span><\/span>\t\t
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In 2026, the UK public sector finds itself operating in one of the most unstable cyber threat environments in modern history. Threat actors from organised cybercriminals to state\u2011aligned groups are exploiting geopolitical tension, accelerating AI\u2011powered attacks, and taking advantage of long\u2011standing structural weaknesses across government, local authorities, policing, healthcare, and essential services.<\/p>

As Shaun Conway, Director of Business Development at D2NA, explains:<\/p>

\u201cThe public sector has always been a high\u2011value target, but 2026 feels different. The threat landscape is moving faster than many organisations can adapt and global conflicts are adding fuel to the fire.\u201d<\/em><\/p>

Below, we explore the key risks shaping public\u2011sector cyber resilience this year, drawing on global intelligence, sector\u2011specific insights, and real\u2011world incidents to illustrate why the UK must stay especially vigilant.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Geopolitical Conflict Is Expanding the Attack Surface<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Ukraine: A continuing catalyst for hybrid warfare<\/em><\/strong><\/p>

Russia\u2019s war on Ukraine remains one of the defining influences on the global cyber climate. Missile strikes in early 2026 reached their highest intensity since the conflict began and unfortunately there are little signs of a resolution being met in the imminent future.<\/p>

Cyber warfare surrounding the Russia\u2011Ukraine conflict continues to spill over into Europe. UK government, academia, and research sectors remain prime targets for Russian\u2011aligned espionage and disruption operations, a trend already visible in Microsoft\u2019s global threat analyses from 2025, where Russia was named among the most active nation\u2011state adversaries targeting the UK public sector.<\/p>

Shaun comments: \u201cRussia\u2019s cyber apparatus is strategic and persistent. Even when the UK is not the primary battleground, our role as an ally means public\u2011sector bodies are continually on the radar.\u201d<\/em><\/p>

Iran: A rapidly escalating threat in 2026<\/em><\/strong><\/p>

The conflict involving Iran in early 2026 has had an immediate and significant impact on cyber activity worldwide. Coordinated US-Israel strikes in February 2026 triggered retaliatory missile and cyber operations, as well as a surge in Iranian\u2011linked hacktivist activity across social platforms and global infrastructure.<\/p>

By March, Iranian cyber groups have already reactivated dormant personas, launched large\u2011scale DDoS and hack\u2011and\u2011leak campaigns, and targeted governments across the Middle East, Europe, and North America. Groups have even claimed access to industrial control systems and government platforms across multiple regions.<\/p>

These developments are critical for UK public\u2011sector leaders to understand. As Shaun notes:<\/p>

\u201cWhen conflicts flare around the globe, cyber ripple effects do not respect borders. UK councils, police forces, and healthcare providers become soft\u2011target opportunities for ideologically motivated or opportunistic spillover attacks.\u201d<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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AI\u2011Driven Attacks Are Becoming Faster, Cheaper, and Harder to Detect<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Public\u2011sector organisations are being hit by increasingly automated, AI\u2011enhanced tactics that blend social engineering with technical exploitation. According to global research by PwC<\/a>, 2026 marks a structural shift in cyber operations: identity\u2011based attacks, generative\u2011AI deception, deepfake impersonation, and automated intrusion pipelines are now mainstream.<\/p>

Endpoint compromise, credential theft, and identity spoofing are becoming attackers\u2019 preferred points of entry, aligning with last year\u2019s evidence that adversaries increasingly \u201clog in rather than break in\u201d using legitimate credentials.<\/p>

Shaun highlights the implications for UK public bodies:<\/p>

\u201cWe are now dealing with AI\u2011paced attacks that operate at machine speed. Deepfakes, synthetic voice spoofing, and automated penetration agents have transformed the threat. Public\u2011sector teams must assume identity can be faked and behaviour can be manipulated.\u201d<\/em><\/p>

The increased adoption of AI across government services, from case\u2011management systems to predictive analytics in policing also introduces new systemic risks. Palo Alto Networks\u2019 public\u2011sector outlook for 2026<\/a> warns that AI systems can act autonomously, making identity governance and machine\u2011identity management critical priorities.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Legacy Infrastructure and Resource Pressures Remain a Critical Weakness<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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The UK public sector continues to rely heavily on outdated systems, fragmented estates, and constrained IT budgets, conditions that attackers intentionally exploit. Microsoft\u2019s 2025 threat data<\/a> showed that legacy technology and limited internal IT capacity place government and public services among the most frequently targeted sectors worldwide.<\/p>

These challenges persist in 2026. The speed of modern cyberattacks far outpaces the detection and response capabilities of many older public\u2011sector environments, especially where services are heavily digitised, but monitoring is under\u2011resourced.<\/p>

Shaun sees this reality every day in D2NA\u2019s work with councils and police forces:<\/p>

\u201cLegacy estates and budget constraints do not just slow down innovation; they create real security gaps. When systems cannot be patched quickly or monitored effectively, attackers exploit them with alarming ease.\u201d<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Supply Chain Fragility and Third\u2011Party Risk Are Growing Exponentially<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Public\u2011sector delivery models depend on an interconnected network of managed service providers, cloud platforms, software vendors, payment systems, and citizen\u2011facing services. This creates an expanding attack surface beyond the organisation\u2019s direct control.<\/p>

Sector research shows that supply\u2011chain exposures remain one of the most dangerous and least visible risks. Software\u2011provider breaches, MSP intrusions, and cloud misconfigurations can cascade across multiple authorities at once, triggering widespread service disruption.<\/p>

The risk is even higher during geopolitical crises, where globally distributed suppliers may themselves be impacted by data\u2011centre resilience challenges or targeted attacks. For example, IDC<\/a> warned that Middle East conflict is already affecting cloud and data\u2011centre stability, sovereign\u2011infrastructure planning, and cybersecurity readiness across the region, with potential knock\u2011on effects for global supply chains.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Public Trust Is Increasingly at Stake<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Cyber incidents in public services are uniquely impactful: they disrupt essential functions, erode citizen trust, and expose sensitive personal data. Real\u2011world attacks in recent years, including major ransomware events affecting well known organisations (for example M&S, Co-op, Legal Aid) showcase this.<\/p>

With 78% of public\u2011sector breaches linked to social engineering, system intrusion, or human error, and 71% driven by financial motive, the importance of strong identity protection, workforce cyber awareness, and Zero Trust principles has never been clearer.<\/p>

Shaun summarises the public\u2011trust challenge:<\/p>

\u201cCitizens rely on public services to function, from policing and social care to waste management and housing. When cyber incidents take these systems offline, the impact is immediate, visible, and deeply damaging to public confidence.\u201d<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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What Public\u2011Sector Leaders Must Prioritise in 2026<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Drawing on these global and sector\u2011specific insights, several clear priorities emerge:<\/p>

Modernise the security foundation<\/em><\/strong><\/p>

Cloud migration, Zero Trust architecture, aggressive patching, and segmentation remain essential<\/p>

Secure AI systems and identity at scale<\/em><\/strong><\/p>

Protect machine identities, validate authenticity, and govern AI models against data poisoning and misuse.<\/p>

Strengthen supply\u2011chain scrutiny<\/em><\/strong><\/p>

Mandate secure\u2011by\u2011design vendor requirements and continuous monitoring of third\u2011party risk.<\/p>

Build cyber\u2011aware workforces<\/em><\/strong><\/p>

Training, phishing simulations, and incident rehearsals can materially reduce human\u2011layer vulnerabilities.<\/p>

Prepare for geopolitical spillover<\/em><\/strong><\/p>

Maintain heightened vigilance, especially for DDoS, ransomware, credential attacks, and hack\u2011and\u2011leak operations linked to the Iran conflict.<\/p>

Shaun\u2019s final advice:<\/p>

\u201cPublic\u2011sector leaders should not wait for the next geopolitical flashpoint or ransomware headline. The risks are already here, but with the right strategy, the right tooling, and the right partners, it is possible to build resilience.\u201d<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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How D2NA can help…<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u201cAt D2NA we have developed our framework, CyberAscend<\/a>, which is our roadmap for any organisation to understand their current security posture, and the clear steps that need to be taken to improve it.”<\/p>

To find out more contact the D2NA team today to start your journey.<\/p>

We also have tailored CyberAscend journeys for Fire & Rescue<\/a>, Government<\/a> and Police <\/a>and other public sector entities.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

<\/span> 5<\/span> mins read<\/span><\/span>In 2026, the UK public sector finds itself operating in one of the most unstable cyber threat environments in modern history. Threat actors from organised cybercriminals to state\u2011aligned groups are exploiting geopolitical tension, accelerating AI\u2011powered attacks, and taking advantage of long\u2011standing structural weaknesses across government, local authorities, policing, healthcare, and essential services. As Shaun Conway, […]<\/p>\n","protected":false},"author":1,"featured_media":6461,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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