Identity-Based Attacks Drove 85% of Ransomware Incidents in Education, Sophos Finds

Identity-based attack techniques, including malicious email, phishing, compromised credentials and brute force attacks, were used in 85% of ransomware attacks against education institutions, according to Sophos's annual State of Ransomware in Education 2026 report. The rate exceeded the cross-sector average of 79%, the company said, underscoring how central identity compromise has become to ransomware incidents targeting both lower and higher education institutions.

Malicious email was the leading technical root cause of ransomware attacks in both lower education, at 31%, and higher education, at 29%, according to Sophos. The company found that 77% of higher education organizations and 71% of lower education organizations said their ransomware incident was also their most significant identity attack.

"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 at 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."

Education institutions recover more slowly than other sectors

Education institutions also recover more slowly from attacks than the cross-sector average, according to Sophos. Lower and higher education institutions are roughly twice as likely as the cross-sector average to need one to three months to fully recover, the company found, with lower education faring worst of all: 31% took a month or more to recover, the highest share of any sector Sophos studied.

Average ransomware recovery costs reached $2.26 million across the education sector, according to Sophos, exceeding the cross-sector average of $1.7 million. More than a quarter, or 26%, of education institutions required one to three months to fully recover from an attack, the company found, nearly double the 14% cross-sector average.

Encryption rates doubled in lower education

The share of lower education organizations whose data was encrypted during a ransomware attack more than doubled year over year, rising from 29% in 2025 to 61% in 2026, according to Sophos. Across the education sector overall, 58% of ransomware attacks resulted in encrypted data, the company found. More than three-quarters of lower education institutions, at 77%, and 69% of higher education institutions restored encrypted data using backups, according to Sophos, both above the 66% cross-sector average.

The median ransom demand for education institutions was $775,200, above the cross-sector median of $698,000, according to Sophos. The company said education median ransom demands have declined for two consecutive years, even as actual payments increased by $15,000 from the 2025 report to the 2026 report.

Attacks are also taking a toll on IT and security staff

More than half of higher education teams, or 53%, reported increased pressure from senior leaders following an attack, compared with 40% across all sectors, according to Sophos. About 39% of education organizations reported staff absences due to stress or mental health issues following a ransomware attack, the company found, compared with 29% across all sectors. Education institutions also reported elevated leadership turnover, according to Sophos, with 29% of higher education and 27% of lower education teams seeing their leadership replaced after an attack, compared with a cross-sector average of 21%.

More than half of higher education institutions, or 53%, said they lacked the skills or expertise to detect and stop attacks in time, compared with 35% across all sectors, Sophos found, while lower education institutions most commonly cited human error, at 52%, lack of protection at 47%, unknown security gaps at 42% and limited capacity at 41% as contributing factors.

The findings are based on an independent survey of 226 IT and cybersecurity leaders in the education sector across 17 countries whose organizations were affected by ransomware in the past year, conducted between January and March 2026, according to Sophos. This is the sixth year the company has tracked the data.