Schools Face a Record Year of Cyberattacks
Public K-12 districts in the US saw a record number of cybersecurity incidents this past year. The K-12 Cyber Incident Map tallied 408 publicly disclosed attacks in 2020, ranging from data breaches and ransomware to phishing and denial-of-service campaigns. That figure marks an 18% increase over 2019 and continues a steady upward trend since tracking began in 2016.
The scale of the target is immense: the public school system serves more than 50 million students and employs roughly 6.7 million people. Despite heavy reliance on SaaS applications and cloud deployments for daily operations, most districts remain under-invested in security. Cybercriminals treat schools as soft targets, drawn to the volume of sensitive data they hold.
The consequences are tangible. A November 2020 ransomware attack on Baltimore County, Maryland schools forced a two-day shutdown for 111,000 students and cost the district more than $8 million to recover. In September 2020, Toledo Public Schools was hit by the Maze ransomware cartel, which leaked 9 GB of compressed data containing student and employee records going back to at least 2008. By February 2021, affected parents were receiving identity theft and credit fraud notifications.
Phishing attacks are equally damaging. The median amount stolen in such attacks is $2 million, and in one 2020 incident a single district lost $9.8 million. With no sign of a slowdown in 2021, educational institutions remain squarely in the crosshairs.
The Security Gaps the Pandemic Exposed
As districts rushed to modernize and shift physical infrastructure to flexible cloud solutions, vulnerabilities surfaced in two main areas: open or exposed ports that let attackers operate undetected, and end-of-life software that no longer receives security patches. The FBI, CISA, and the Multi-State Information Sharing and Analysis Center have all issued a joint advisory recommending K-12 schools adopt more comprehensive network-layer defenses.
Moving Beyond Upstream ISP Protections
Many districts assume their ISP's DDoS mitigation is sufficient, but that setup has notable limitations. ISPs often rely on commodity hardware comparable to what data centers deployed 20 years ago. Their mitigation is typically reactive — the provider must be notified of an attack before taking action, and if the appliance is overwhelmed, even legitimate traffic can be dropped. Visibility into attack sources is limited, and there is little control over adjusting security measures for future incidents.
An always-on service addresses those gaps. With proactive mitigation, the time to respond is minimized, and additional layers like DNS, CDN, and Web Application Firewall can be integrated into a defense-in-depth strategy.
Cloudflare One for Districts
Cloudflare One is designed as a network-as-a-service solution, replacing a patchwork of appliances with a single cloud-based security and performance platform managed through one interface. For K-12 customers, Cloudflare has built a tailored onboarding process, supported by a dedicated Public Sector team with 24/7/365 technical support, emergency response during attacks, and training on maintaining security posture and business continuity planning.
Within Cloudflare One, the Layer 3 DDoS mitigation solution Magic Transit has already kept districts like Godwin Heights online. By using anycast and BGP to announce IP space, Cloudflare absorbs attack traffic and mitigates DDoS attacks close to their source, then forwards clean traffic back over low-latency paths to the network.
For protecting remote students and staff, Cloudflare for Teams pairs Access and Gateway. Access integrates with identity management systems to secure internal applications, while Gateway applies DNS and URL filtering, SSL inspection, and file upload/download policies to outbound internet traffic. The combination protects users from phishing, malware, and ransomware without degrading performance.
