If I get it: India has a biometric database with 1B people on it! ... wow ... just wow ... And adding new people to it is now compromised by a publically available hack, although getting 1B biometrics on board must have had an error rate that would be scary anyway. The UUID created is needed almost everywhere, like driving license numbers elsewhere. How much of the scare is "People can be added once but under incorre…
The ability to add people is problematic - once you have unverified additions, you can't trust whether even real biometrics were used for it, so it wouldn't even necessarily show up as a duplicate.
Search: Biometrics matching has a lot of failures (5% of 1billion is still a huge number).