Is Samsung Pay secure?
Samsung Pay uses Tokenization, a Secure Environment, and Samsung KNOX to secure your payment information. Additionally, you verify either using your fingerprint, Iris scanner(Galaxy S8 and Galaxy S8+ devices only) or a 4-digit PIN when making purchases.
For more details on Samsung Pay security features visit www.samsung.com/au/apps/samsungpay/
https://www.beyondbank.com.au/need-help/is-samsung-pay-secure