The Central Board of Secondary Education issued a strong clarification on May 27, 2026, denying claims that its On-Screen Marking portal was hacked or compromised. The statement came after a 19-year-old cybersecurity researcher alleged that he found critical vulnerabilities in the CBSE OSM system that could allow unauthorised access to examiner accounts and potential alteration of student marks.
CBSE said the website flagged in the viral posts — cbse.onmarks.co.in — is a testing site with sample data used for internal checks and review purposes. The board confirmed that this URL does not contain any actual evaluation data, marks, or student information. CBSE also stated that 11.3 lakh answer book copy requests have been received and processed this year, and no security breach has been detected in the live assessment infrastructure.
Despite the board’s assurances, the episode has deepened public concern. Parents and students have been raising issues about blurred answer sheet scans, missed step-marking, mixed-up scripts, and payment glitches throughout the post-result period. The matter is now set to come up before a Parliamentary panel on June 1, 2026, where CBSE and the Education Ministry will face questions on both the OSM process and the Class 9-10 language policy.
