Sensitive information of 81.5 crore Indians has emerged on the dark web, potentially marking the biggest data breach in India's history. The information has been leaked from the Indian Council of Medical Research’s (ICMR) database. However, the epicentre of the leak is still unknown.

However, the epicentre of the leak is still unknown. The Central Bureau of Investigation (CBI) is investigating the leak, after the breach was brought to attention by ‘pwn0001’ –– a hacker –– who advertised the stolen information on the dark web. As per the data shared by the hacker, the stolen information comprises Aadhaar and passport details, along with names, phone numbers and temporary and permanent addresses of millions of Indians. The hacker also claims that this data comes from the information ICMR collected during COVID-19 testing.