How PhonePe, Paytm and Other Payment Apps Actually Work: Frontend, Backend, Infrastructure, Traffic and Security Explained
How PhonePe, Paytm and Other Payment Apps Actually Work: Frontend, Backend, Infrastructure, Traffic and Security Explained When someone opens PhonePe, Paytm, Google Pay or another digital-payment application, the experience appears extremely simple. You enter a UPI ID, scan a QR code, choose a bank account, enter your PIN and receive a success message. The screen…