Identity theft is driving a surge in ransomware attacks against schools, colleges, and universities, with 85% of incidents beginning through compromised credentials or phishing emails.
Identity compromise leads to school attacks
Sophos released its annual State of Ransomware in Education 2026 report, finding that identity-based attack techniques were used in 85% of ransomware incidents targeting education institutions. This rate exceeds the cross-sector average of 79%, highlighting the growing reliance on stolen credentials by attackers. The techniques include malicious emails, phishing, compromised credentials, and brute force attacks.
Malicious email was the leading technical root cause of ransomware attacks in both lower education (31%) and higher education (29%). The report also found that 77% of higher education organizations and 71% of lower education organizations said their ransomware incident was also their most significant identity attack. This strong correlation suggests that once an attacker gains access through a stolen login, they are often able to escalate privileges and achieve their objectives without needing to bypass traditional perimeter defenses.
Read Also: CIOs struggle with unmanaged device risks
Historically, physical access has been the primary method for intruders to breach secure networks, often requiring technical bypasses to enter internal systems. The shift toward credential theft changes that dynamic, making the initial entry point far more accessible while shifting the defensive burden from perimeter security to user verification protocols. Attackers are now effectively stealing the digital keys to the kingdom, rendering complex firewalls less relevant if a single user account is compromised.
Slow recovery and high costs
Education institutions take longer to recover from attacks than other sectors. Lower and higher education institutions are roughly twice as likely as the cross-sector average to need one to three months to fully recover. Lower education fared worst of all: 31% took a month or more to get back on their feet, the highest share of any sector.
Average ransomware recovery costs reached $2.26 million across the education sector, exceeding the cross-sector average of $1.7 million. More than a quarter (26%) of education institutions required one to three months to fully recover from an attack, nearly double the cross-sector average (14%). The extended timeline is often driven by the complexity of restoring educational software and learning management systems that are critical for daily operations.
Read Also: OpenAI Tracks User Activity on MacBooks
Backup reliance and rising demands
Data restoration relied heavily on backups. Over three quarters (77%) of lower education institutions and 69% of higher education institutions restored encrypted data using backups, both above the 66% cross-sector average. This reliance indicates that while organizations are preparing for incidents, their ability to detect the breach before encryption occurs remains a significant hurdle.
Ransom demands remained raised despite a multi-year decline. The median ransom demand for education institutions was $775,200, above the cross-sector median of $698,000. Education median ransom demands have gone down two years in a row, while payments increased by $15,000 from the 2025 report to 2026. This discrepancy suggests that while attackers may be lowering the initial offer, they are still successfully extracting larger ransoms from educational institutions, likely due to their willingness to pay to resume operations quickly.
Talent gaps and human strain
Education organizations reported greater operational challenges than the cross-sector average. More than half (53%) of higher education institutions said they lacked the skills or expertise to detect and stop attacks in time compared with 35% across all sectors, while lower education institutions most commonly cited human error (52%), lack of protection (47%), unknown security gaps (42%) and limited capacity (41%) as contributing factors. These internal struggles create a perfect storm where limited resources prevent the implementation of robust security measures.
Read Also: Starcloud deploys GPUs for 80,000‑year Alpha Centauri trek
The human toll on IT and security teams intensified. Over half (53%) of higher education teams reported increased pressure from senior leaders, versus 40% across all sectors. Around 39% of education organizations reported staff absences due to stress or mental health issues following a ransomware attack, compared to 29% across all sectors. Education also reported raised leadership turnover, with 29% of higher education and 27% of lower education teams seeing their leadership replaced after the attack, compared with a cross-sector average of 21%. The psychological impact of dealing with these frequent and damaging breaches is eroding the stability of the workforce.
“Education institutions remain attractive targets because they hold vast amounts of personal data while operating under significant resource constraints,” said Ross McKerchar, chief information security officer, Sophos. “Today’s attackers don’t need a crowbar when they can steal the keys. Identity compromise has become one of the most effective paths into an organization, and AI is only increasing the speed, scale and sophistication of these attacks. The most resilient institutions are the ones that treat identity as a core security control and combine it with integrated detection and response capabilities that can stop threats before they become full-scale incidents.”
The findings are based on an independent survey of 226 IT and cybersecurity leaders in the education sector across 17 countries whose organizations were impacted by ransomware in the past year. Research was conducted between January and March 2026. For the purposes of this report, age cohorts are defined as lower education (typically students up to age 18) and higher education (typically students over 18). This is the sixth year Sophos has tracked this data.
Leave a Reply