CBSE Re-Evaluation Portal Hit by Cyberattacks; Over 16,000 Students Submit Requests

The Central Board of Secondary Education said the CBSE re-evaluation portal faced a “barrage of cyberattacks” on 4 June, briefly affecting access for candidates. Services are now active again on the official website, and CBSE reported that more than 16,000 students have already finished submitting requests, amid an ongoing dispute over the board’s on-screen marking system.

CBSE re-evaluation portal: cyberattack volume and security concerns

CBSE explained that the re-evaluation portal recorded around 1.5 million hits within two minutes during the disruption, which the board linked to the cyberattack. Officials also detected more than 1 lakh attempts to access files without authorisation. The board described these actions as deliberate efforts by “malicious actors” to interfere with services used by students.

Detailing the incident further, CBSE posted on social media, “While thousands of students accessed the CBSE re-evaluation portal today, malicious actors attempted to disrupt services through a barrage of cyberattacks,” and reiterated that the attacks coincided with heavy student traffic. The board stated that teams monitored the situation closely while working to restore stable access.

CBSE re-evaluation portal and on-screen marking row

The cyber incident came as CBSE faced criticism over its on-screen marking, or OSM, portal. The Ministry of Education has already asked CBSE for a detailed explanation about the OSM system and the contract given to Hyderabad-based Coempt EduTeck. A parliamentary panel also examined complaints about the on-screen marking portal on 4 June, along with the three-language policy for Classes 9 and 10.

CBSE recently launched the re-evaluation and verification facility for Class 12 results, using the same online portal that came under attack. The portal is meant for candidates who want their marks checked or papers re-evaluated. Students can access the direct re-evaluation link through the main CBSE website at cbse.gov.in, according to information shared by the board.

CBSE re-evaluation portal launch timeline and student access

The board’s portal went live after several postponements. It was first scheduled to begin operations on 29 May, but CBSE moved this to 1 June, saying the extra time was necessary to ensure a “transparent and error-free process.” The re-evaluation and verification window finally opened on 4 June, as students waited to file requests.

CBSE said student responses have guided technical tweaks to the CBSE re-evaluation portal since launch. “Based on student feedback, we have further refined the platform, including extending session time limits to make the process more convenient and seamless. Our teams remain vigilant and responsive to ensure our dearest students are facilitated in all ways possible,” the board stated, stressing that monitoring would continue after the cyberattacks.