New Delhi, June 5 -- The Central Board of Secondary Education's (CBSE) re-evaluation portal was targeted by a large-scale cyberattack involving nearly 3.8 million malicious packets on June 3 in an apparent attempt to disrupt the ongoing verification and re-evaluation process, CBSE officials told ANI.

According to officials, the portal also detected and blocked over 100,000 unauthorised access attempts within minutes of becoming operational on June 2, while security systems successfully mitigated coordinated high-volume traffic bursts resembling Distributed Denial-of-Service (DDoS) attacks.

"The traffic profile showed coordinated request surges consistent with DDoS-type attack patterns. However, the security architecture deployed on the ...