Mastercard will begin accepting selfies to approve online payments in yet another alternative to traditional password verification.
The credit card company says it will also allow fingerprints to be used, following major banks RBS and Natwest, while others such as HSBC and Barclays use voice recognition.
To use selfie authentication, customers will need to download a Mastercard app that allows them to take a photo each time they make an online purchase. Their face will be scanned to prove they are making a purchase and the scan will verify it's a legitimate selfie by requiring users to blink when they take their own photo.
Fingerprint authentication can be used on new smartphones, including the iPhone 6 and iPhone 6S.
The technology will be rolled out by big banks in the US, Canada, UK and Europe over the next few months and it is expected to be used regularly across the world within five years.
Mastercard said it is also working on other authentication methods such as monitoring a customer's heartbeat, iris scans and voice recognition.
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