FIELD: data processing.
SUBSTANCE: invention relates to means of identifying payment data and replacing or removing secret information from payment data by a secure card reader. Method comprises the following features: a reading device: receiving data from a payment device, identifying, replacing or removing secret information from a second part of device data by replacing at least a portion of secret information with fraud detection data and providing a first portion of device data and a second data portion of the device to a host computer having communication with the reading device. Method of replacing and removing secret information discloses a replacement and removal process implemented by a secure reading device.
EFFECT: ensuring prevention of counterfeit of confidential data for the purpose of falsification and protection against fraud, provision of fast identification of fraudulent actions and identification of source of fraudulent use.
20 cl, 11 dwg
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