"The UPI transaction data is encrypted, and Facebook doesn't have access to this data in clear format," WhatsApp said in a post on its FAQ section.
WhatsApp had rolled out its payments service in India in November 2020, after receiving approval from the National Payments Corporation of India. WhatsApp Pay competes with Google Pay, Paytm, and PhonePe, which also enable UPI transactions.
WhatsApp has also said payments transaction data is encrypted and stored only in India, according to the Reserve Bank of India (RBI) guidelines.
The messaging platform added that it does not capture or store users' UPI PINs.
"WhatsApp does not store other customer payment sensitive information such as your one-time password (OTP), full account number, or any debit card details," the messaging platform added.