The invention relates to methods, systems and computer program products for securing one time passwords (OTP) for use in OTP based authorization of electronic payment transactions. The invention involves transmission and display of an OTP at a user device in response to a prior determination that a user operating the user device is authorized to implement a payment transaction through a payment account associated with the payment transaction. The invention implements this through transmission to the user device associated with the identified payment account, a data message initiating a process for verification of identity of a user operating the user device. Responsive to determining that the user operating the user device is authorized to operate the payment account, displaying the OTP on the user device for implementation of the payment transaction.