CBSE Portal Handles 70,000 Grievance Requests Amid Sophisticated Cyberattacks

Despite facing millions of malicious access attempts during its launch, the CBSE digital platform has successfully processed over 70,000 student requests for marks verification and re-evaluation.

The Central Board of Secondary Education (CBSE) has successfully navigated a turbulent launch for its post-result grievance services, maintaining system stability even as the portal was subjected to a barrage of targeted cyberattacks. Since the platform went live in the early hours of June 2, 2026, it has become the primary gateway for students seeking clarity on their academic performance, handling a massive influx of traffic while simultaneously acting as a digital fortress.

A Massive Digital Onslaught

According to official data released by the board, the portal had processed 70,433 applications by June 4. This volume is split between 7,314 requests for marks verification and 63,119 applications for re-evaluation. The launch, which took place at 4:30 AM, saw immediate and intense pressure; the board reported that the system recorded nearly 1.5 million access requests within the first two minutes of operation.

Amid this surge, the board’s security systems were tested by bad actors. Within those same two minutes, over 100,000 unauthorised access attempts were intercepted and blocked. By June 3, the situation escalated when the portal was hit by a concerted Denial-of-Service (DoS) attack, involving roughly 3.8 million packets directed at the infrastructure.

Robust Security Infrastructure

The resilience of the board’s digital services is attributed to an emergency security hardening exercise conducted prior to the launch. Before the portal was opened to students, the system underwent rigorous penetration testing, vulnerability assessments, and stress testing. To ensure the process remained secure, technical teams deployed Web Application Firewall (WAF) protection, DDoS mitigation systems, and strict audit logging.

"The portal remained functional due to timely intervention by technical teams and the security architecture deployed before launch," the board said in a statement. By employing continuous monitoring and secure authentication controls, the board managed to mitigate the traffic patterns typical of a coordinated DDoS attack, ensuring that the verification and re-evaluation process for students remained uninterrupted.

Balancing Modernisation and Access

The integration of the On-Screen Marking (OSM) system with an online post-result portal marks a significant shift in how the board manages student grievances. While the sheer volume of traffic highlights the high stakes associated with Class 12 results, the digital transformation aims to reduce the physical and administrative burden on students.

The ability of the infrastructure to absorb millions of malicious packets while simultaneously serving thousands of legitimate users is a critical benchmark for the board. As the re-evaluation process continues, the incident serves as a stark reminder of the security challenges inherent in digitising national-level educational services, where high-traffic events often invite unwanted digital interference.