Phone numbers and emails of over 4.5 lakh students on CBSE's re-evaluation and photocopy portal have been exposed, 19-year-old ethical hacker Nisarga Adhikary has claimed. He also shared a picture of the blurred data and claimed that the "CERT-In & CBSE were notified" about it. "This can be done by any account registered on the platform," another ethical hacker claimed.