Sector Analysis

Sector Under the Microscope: Cyber Security for Schools and Academies

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Hedgehog Security 18 December 2025 12 min read

Schools hold safeguarding data and have the smallest budgets.

Schools and academies are under sustained cyber attack — and they face a uniquely difficult combination of factors. They hold some of the most sensitive data imaginable (safeguarding records, SEN information, medical data for children), they operate with hundreds of users who are children, they have extremely limited IT budgets, and they face the same commodity threats — ransomware, phishing, credential theft — as organisations with dedicated security teams and enterprise budgets.

This article examines the specific cyber threats facing UK schools, academies, and multi-academy trusts, the regulatory expectations they must meet, and practical security priorities that deliver the greatest protection for the smallest investment.


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Why schools are a preferred target.

Ransomware Timed to Term Dates
Ransomware groups deliberately target schools at the start of term, before exam periods, and during Ofsted inspection windows — when the pressure to restore operations is greatest. The NCSC has issued repeated alerts about ransomware campaigns specifically targeting the education sector.
Safeguarding Data at Risk
Schools hold safeguarding records, child protection logs, SEN assessments, and looked-after children data. A breach of this information does not just violate GDPR — it can endanger vulnerable children. The sensitivity of this data makes schools a high-impact target even though they are a low-budget one.
Phishing Against School Staff
Phishing campaigns targeting school staff — impersonating the DfE, Ofsted, exam boards, and MAT central teams — are increasingly sophisticated. School staff, under constant time pressure and operating with limited security awareness training, are statistically more likely to click.
BYOD and Student Devices
The post-pandemic prevalence of student devices connecting to school networks creates an enormous attack surface. Personal devices with no security controls connecting to the same network as the MIS (Management Information System) and safeguarding database.

DfE standards and Cyber Essentials for schools.

The Department for Education published cyber security standards for schools in 2023, aligned with Cyber Essentials. While not yet mandatory, these standards are increasingly referenced by Ofsted, MAT boards, and the Risk Protection Arrangement (RPA). The NCSC actively provides free tools and guidance for schools through its Schools Cyber Security programme.

For multi-academy trusts, Cyber Essentials certification is becoming a governance expectation — trust boards are asking for evidence that schools within the trust meet a recognised security baseline. Under the Danzell update, the new mandatory MFA requirement poses a specific challenge for education, where many schools use platforms with limited MFA options for student accounts.


Common education sector vulnerabilities.

Finding Why Education Is Different
Flat networks — no segmentation between staff, students, and IoT Budget constraints mean many schools operate single-segment networks where staff devices, student devices, interactive whiteboards, CCTV, and the MIS server all share the same network. A compromised student device can reach the safeguarding database.
Shared admin passwords across the school IT support is often a single part-time technician or an outsourced provider. A single admin credential is shared across all devices and systems — and it rarely changes when staff leave.
No backups — or untested backups Schools that have been hit by ransomware frequently discover that their backups either do not exist, are stored on the same network (and are encrypted by the ransomware), or have never been tested and do not restore.
Unmanaged student and staff BYOD Personal devices connecting to the network with no security controls, no patching oversight, and no separation from school systems. These devices carry malware, connect to other networks, and are not subject to any management.
Legacy MIS and curriculum software Management information systems and curriculum platforms running on unsupported operating systems or frameworks because the vendor has not updated them — and the school cannot afford to migrate.

Maximum protection on a school budget.

Schools cannot match the security investment of an enterprise. The goal is to prioritise the controls that deliver the greatest risk reduction for the smallest cost — which is exactly what Cyber Essentials was designed to do.

Security Priorities for Schools
── Immediate (no/low cost) ────────────────────────────────
Enable MFA on all staff accounts (Microsoft 365, Google)
Segment the network: staff, students, IoT on separate VLANs
Enable automatic updates on all devices
Change all default passwords on network devices
Test and verify backup restoration procedures

── Short-term (modest budget) ─────────────────────────────
Achieve Cyber Essentials certification
Implement email filtering and anti-phishing controls
Commission an external penetration test
Deploy offline/air-gapped backup for MIS and safeguarding data

── Ongoing ────────────────────────────────────────────────
24/7 monitoring via SOC in a Box (from £335/month)
Annual penetration test and CE renewal
Termly staff security awareness training

SOC in a Box for Schools provides 24/7 security monitoring at a price point designed for education budgets. Combined with Cyber Essentials certification, it provides the technical controls and continuous monitoring that protect safeguarding data and satisfy DfE standards.


Part 5 preview.

Next week, we turn to manufacturing — a sector where operational technology, industrial control systems, and the convergence of IT and OT create an attack surface that is fundamentally different from traditional IT environments.


Security that fits an education budget.

We work with schools, academies, and MATs across the UK — delivering <a href="/cyber-essentials">Cyber Essentials certification</a>, penetration testing, and <a href="https://www.socinabox.co.uk/sectors/schools-academies">continuous SOC monitoring</a> at price points that work for education. Our testing targets the specific risks schools face, and our reports support DfE standards compliance.

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