The UK Public Sector is in the firing line… here’s why…
The UK is being inundated by cyberattacks, legacy kit isn’t helping, and AI has changed the game. The good news? There’s a clear set of moves we can make fast to shore up resilience across government and public services.
The UK is the second most targeted nation for cyber threats, accounting for 5.6% of all observed incidents in the first half of 2025 (Microsoft Digital Defence Report 2025). That’s not a league table anyone wants to lead. It reflects the strategic importance of our public services, the sensitivity of our data, and the reality that many organisations still rely on older, harder-to-secure systems.
The majority of incidents investigated this year were criminally motivated rather than purely nation‑state. The big three:
- Data theft (37%) – credentials, tokens, and citizen records are gold.
- Extortion (33%) – ransomware and follow‑on pressure tactics.
- Destruction/human‑operated ransomware (19%) – operational disruption with knock‑on effects to public services.
Government organisations, research & academia, and IT are among the most frequently impacted sectors, unsurprising given their data sensitivity and societal importance.
Why the UK Is in the Crosshairs
- Second only to the US: The UK accounts for 5.6% of global cyberattacks, making us one of the hottest targets worldwide.
- Public sector is a magnet: Government agencies, research bodies, and academia are among the most attacked sectors globally.
- Legacy tech + tight budgets: Many public services run on outdated systems with limited IT teams. Easy pickings for attackers.
- Nation-state interest: Russia, China, Iran, and North Korea are all expanding operations, targeting UK government and research sectors for espionage and disruption.
AI: friend and foe?
Let’s be blunt: AI is now part of the attacker’s toolkit; from scaled social engineering to real‑time evasion. But it’s also a lifeline for defenders… AI‑driven analytics can spot suspect behaviour early, automate containment, and reduce alert fatigue. The catch? AI systems themselves need securing (think prompt injection and data poisoning). If we’re adopting AI at pace, we must also build AI governance into our security fabric. In an AI‑first era, defending AI with AI isn’t optional; it’s a strategic advantage.
So what’s the plan?
Modernise the foundations
- Prioritise cloud migration for resilience and consistent controls.
- Move decisively to Zero Trust identity, device health, least‑privilege access, continuous evaluation.
- Kill off legacy exposure points: patch aggressively, retire end‑of‑life systems, segment critical workloads.
Turn on AI‑assisted defence
- Deploy behaviour‑based detection and automated remediation (for example suspend suspicious accounts, force resets).
- Safeguard your AI/ML pipelines: protect models from poisoning, lock down prompts and data sources, audit outcomes.
Credential hygiene and infostealer defence
- Assume attackers will log in rather than break in.
- Mandate MFA everywhere, rotate tokens after infections, and monitor for token misuse across cloud apps.
Supply chain & procurement discipline
- Require secure‑by‑design commitments from suppliers, plus SBOMs (software bill of materials) for transparency.
- Standardise post‑market monitoring and vulnerability handling. Bake this into contracts.
Tabletop and incident drill
- Run a cross‑government or multi-agency exercise simulating a ransomware hit to a critical service.
- Agree playbooks: rapid isolation, restoration priorities, public comms, and inter‑agency escalation.
What Can You Do (Starting Today):
- Lock down identities – MFA everywhere, no excuses.
- Stop infostealers – block risky scripts, teach staff about sneaky tricks like ClickFix.
- Plan for the worst – test backups, segment networks.
- Bake security into procurement – demand secure-by-design and transparency.
- Think ahead – start prepping for quantum-safe cryptography now.
Ready to Take Action?
Don’t wait for the next headline. Start with the basics today and begin your journey with CyberAscend.
We also have tailored CyberAscend journeys for Fire & Rescue, Government and Police and other public sector entities.