CBSE addresses OnMark portal security concerns, says flaws have been contained

The Central Board of Secondary Education (CBSE) stated on May 31, 2026, that security flaws in the OnMark portal, managed by its service provider, have been addressed. The board had been monitoring public reports of vulnerabilities and deployed a team of cybersecurity experts from government agencies and Indian Institutes of Technology (IITs) to reinforce the system, including migrating it to a more secure setup. CBSE clarified that the identified vulnerabilities have been contained while additional checks are underway to rule out any other exploitable weaknesses. The board expressed gratitude to citizens and ethical hackers who reported potential security issues and urged others with relevant information to reach out to its security teams. The statement follows concerns raised in the public domain regarding alleged vulnerabilities in the portal. CBSE emphasized that its evaluation system remains secure, aligning with previous assurances about the safety of answer sheets. The expert team’s involvement reflects a coordinated effort to mitigate risks and ensure the integrity of the portal. CBSE’s proactive response includes direct engagement with ethical hackers, demonstrating a commitment to transparency and security improvements.