The Central Board of Secondary Education (CBSE) on Tuesday said its online portal for re-evaluation and related post result services came under a major cyberattack during the ongoing application window for Class 10 and Class 12 students.
Board said the platform witnessed an unprecedented spike in activity, receiving nearly 15 lakh hits within a span of just two minutes. The sudden influx of traffic disrupted the functioning of the portal, making it difficult for students to access services such as verification of marks, re-evaluation requests and applications for photocopies of answer sheets.
CBSE attributed the disruption to coordinated cyberattacks that coincided with the peak period of student activity following the declaration of board examination results.
The board said its technical teams were immediately deployed to monitor the situation and implement safeguards to stabilise the system.
In a statement, CBSE assured students and parents that no student records or personal information had been compromised. The board maintained that there was no evidence of a data breach and that all information remained secure despite the attempted attack.
Officials added that additional cybersecurity measures have been put in place to strengthen the portal against future disruptions and manage high traffic volumes more effectively.
The incident has once again drawn attention to the challenges faced by educational institutions in maintaining uninterrupted digital services during critical academic processes involving millions of users.
CBSE has advised students not to panic and to rely only on official communications for updates regarding the re-evaluation process and submission deadlines.
Update from our Cybersecurity Teams:
The CBSE revaluation portal is currently supporting over 8,000 concurrent users. As of 3:00 PM today, more than 16,000 students have successfully completed their submissions.
While thousands of students accessed the CBSE re-evaluation portal…
— CBSE HQ (@cbseindia29) June 2, 2026
