While a number of data leaks have been reported recently, this is the first time a data leak on this scale has been documented. Since the report was published, three of the four websites have masked or removed the data.
The sites included the one storing data for the mammoth MNREGA - the Central scheme for rural employment that caters to 25.46 crore people across the country. Around 10.9 crore Aadhaar numbers are stored on the MNREGA web portal; 78 lakh of these are linked to post office accounts and a whopping 8.24 crore linked with bank accounts. The report suggests that almost all the stored data was accessible until a few days ago.
The other was the National Social Assistance Programme, another Central scheme under which pension is provided to the elderly people, widows and persons with disabilities.
On the NSAP site, the CIS found, a simple tweak provides access to Aadhaar of 94 lakh beneficiaries and almost 15 lakh post office accounts linked to it, as well as bank details. The total number of Aadhaar made public here are 1.59 crore.
The sites of the Andhra Pradesh government that compromised Aadhaar include the Chandranna Bima Scheme and the Daily Online Payment Reports of NREGA. Between them they made public 3 crore Aadhar numbers.