> Since paper-aadhaar is still very much accepted as a proof, just having the number is enough (in many cases) to take over someone's identity and get a new SIM issued, which you can then use for emptying the bank account.

Weird. Maybe it's different from state to state or probably area to area. Atleast where I reside (Telangana), getting a new SIM requires fingerprint authentication followed by SMS OTP to an existing mobile number. If you do not have an existing number linked to Aadhaar, only then a fingerprint scan would suffice. I have also opened a bank account here following the same procedure. I had to get one number ported and that required multiple authentication too.