TM Unique Feature for mPOS : Trusted User Interface (UI) Message to be signed ▪ Transaction summary displayed by TEE ▪ Rich OS environment cannot tamper with the message ▪ The user signs exactly what s/he is seeing Explicit Validation Means ▪ PIN / password entry  rich OS environment cannot have access to entered credential Security Indicator ▪ Text or image ▪ 'Sign-in seal concept' ▪ Information securely configured by the user and securely controlled by the TEE ▪ Prove to the user that the screen is TRUSTED by seeing this known information  Tools to build 'what you see is what you sign', anti-phishing and non repudiation   
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