Tue, 29 Sep 2026 · LIVE
Updated May 31, 2026 · 16:45
Education News Updated May 31, 2026

CBSE Bolsters OnMark Portal Security Amid Evaluation System Concerns

The Central Board of Secondary Education (CBSE) has deployed cybersecurity experts from government agencies and IITs to fortify the OnMark portal amid concerns over vulnerabilities. The board stated that identified weaknesses have been contained and other exploitable issues are being addressed. This comes after reports of technical glitches in the new On-Screen Marking (OSM) system for Class 12 evaluations, which led to over 68,000 answer sheets being rescanned. CBSE has denied any data breach, clarifying that a flagged web link was only a testing environment.

CBSE says cybersecurity teams strengthening OnMark portal amid concerns over evaluation system

New Delhi, May 31

The Central Board of Secondary Education said on Sunday that it is monitoring and containing vulnerabilities in the OnMark portal used for exam services, and cybersecurity experts from government agencies and IITs are now fortifying the systems.

The statement comes amid growing scrutiny of the board's newly implemented On-Screen Marking (OSM) system for Class 12 evaluations, which has come under criticism following reports of technical issues and concerns regarding the assessment process.

A large number of students have reportedly sought access to their evaluated answer sheets after noticing unexpected variations in their scores.

"We have been closely monitoring the vulnerabilities in the OnMark portal of our service provider that are being flagged in the public domain," the CBSE said in a statement.

"An expert team of cybersecurity professionals has been deployed over the last few days from across various arms of the government, as well as the IITs, to fortify these systems, including taking them over to a more secure set-up. The identified vulnerabilities have been contained, and other exploitable weaknesses are being ruled out," it added.

The CBSE also expressed gratitude to the "alert citizens and ethical hackers" for pointing out "weaknesses", adding that the education board has gotten in touch with some of them directly.

"We request any others to reach out to our security teams at secy-cbse@nic.in for any further inputs," the secondary education board added.

The controversy surrounding the OSM system intensified after reports emerged of technical glitches and evaluation-related concerns during the Class 12 assessment process. According to information that surfaced during internal reviews, the board introduced the digital evaluation system without conducting a nationwide pilot project before its implementation.

Subsequent investigations reportedly found that a significant number of answer books had to undergo additional processing after issues were detected during the digital evaluation process.

According to available information, more than 68,000 answer sheets were rescanned, while around 13,500 answer books required manual verification because of image-quality concerns and related technical issues.

Despite the criticism, CBSE has firmly rejected allegations suggesting that the system suffered a data breach or was compromised through hacking.

The board clarified that a web link highlighted by a cybersecurity researcher was associated with a testing environment containing sample information and was not linked to the live portal used for actual examination evaluation or student data.

According to CBSE, the flagged URL belonged to a test platform and did not provide access to real examination records or operational evaluation systems.

The board reiterated that no breach of the live evaluation infrastructure had taken place and that necessary measures were being implemented to further enhance security safeguards.

The development comes at a time when the board is facing increased attention from students, parents and educators regarding the functioning of the new digital evaluation mechanism.

CBSE officials said that efforts are underway to improve the system's reliability, strengthen cybersecurity protections and address concerns raised during the evaluation process while ensuring the integrity of examination services.

— IANS

Reader Comments

Ananya R

As a Class 12 student, this is really stressful. We worked so hard and now there are doubts about evaluation. I appreciate CBSE acknowledging the issues and reaching out to ethical hackers, but students deserve transparency. Please release the rescanned answer sheets quickly so we can check for errors!

Vikram M

Election year or not, this is a serious matter. I've been a teacher for 20 years and I've never seen such rushed implementation. Why skip the pilot project? 68,000 rescanned answer sheets is not a small number. Kudos to the ethical hackers who flagged vulnerabilities, but CBSE should have tested before launching. Big lesson for our education system.

Siddharth J

India needs to modernize exam systems, but not at the cost of students. Glad they're bringing in IIT cybersecurity teams. However, the fact that 13,500 answer books needed manual verification is alarming. Hope CBSE also addresses the transparency concerns about how evaluation is actually being done. Accountability matters!

Meera T

As a parent, I'm worried. My daughter's scores seem off compared to her mock tests. The CBSE statement is reassuring but we need concrete steps. Why not let students access scanned answer sheets online immediately? That would restore confidence. Digitalization is great but only if it's secure and fair. 🙏

Arjun K

Look, I'm all for technology in education, but this is a classic case of putting the cart before the horse. No pilot, no proper testing, and now scrambling to fix vulnerabilities. At least they're being transparent now. But CBSE needs to learn: students' futures can't be experiments. Also, great to see ethical hackers helping the nation

We welcome thoughtful discussions from our readers. Please keep comments respectful and on-topic.

Reader Voices

Leave a comment

Be kind. Add to the conversation. 0/50
Thank you — your comment has been submitted.
JS blocked