The biometric security methods for online transactions have been in trials by MasterCard since last July and are being expanded around the world.

MasterCard is planning to launch fingerprint and selfie biometric identification options for customers in the United States and in other parts of the world this summer as it finds that users are comfortable and confident with the technology.

The expansion of the program, which began last July as a trial project to see how consumers would respond to the use of selfies and fingerprints to replace passwords for their online purchases, was announced by the company on Feb. 22 in Amsterdam, where a larger testing project involving some 750 users over six months was also conducted.

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