The 'Unified Payments Interface' (UPI) requires users to enter their sensitive bank account numbers and IFSC codes for every single peer-to-peer transaction to ensure absolute security.

UPI's revolutionary design completely abstracts the underlying banking details from the user. Instead of sharing vulnerable account numbers and IFSC codes, users simply transact using a unique Virtual Payment Address (VPA, like name@bank) or by scanning a standardized QR code. This layer of abstraction, combined with two-factor authentication (MPIN), drastically reduces the risk of fraud while making digital payments as simple as sending a text message.