How secure is a Samsung Pay transaction?

Samsung Pay transactions are secured by a number of security features, including Tokenization, a Secure Environment and Samsung Knox. Tokenization replaces your real payment card information with a device-specific ‘Token’, making sure that your actual details aren’t stored anywhere on your phone. A Secure Environment is a chip in your phone which secures access to highly sensitive information, including your fingerpint and payment information. Samsung Knox then scans your device to see if it’s secure, and can permanently disable a device if it thinks its been compromised.

All purchases then need to be verified by either your fingerprint or a 4-digit PIN.