The Central Board of Secondary Education (CBSE) has denied claims made by a 19-year-old over alleged vulnerabilities in its evaluation system, saying the cited portal was only a testing site with sample data and was not linked to the original platform used for assessment work.
The CBSE has rejected the claims referring to a security breach in its On-Screen Marking (OSM) evaluation system, clarifying that a URL mentioned in social media posts was only a testing platform containing sample data and not the portal used for actual assessment work. In an official statement, it said posts circulating on social media referred to the URL cbse.onmarks.co.in, with claims that it had been accessed or compromised in February 2026.
The clarification comes after online claims by a 19-year-old who gave Class 12 exams this year suggested that a CBSE digital evaluation portal had been compromised earlier this year. The allegations also became part of discussions surrounding concerns over CBSE’s post-result processes and the newly introduced OSM mechanism.
Also read: 19-yr-old claims to have hacked CBSE website, says warned earlier
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