You might want to think twice before relying on the Galaxy S8's facial recognition to secure your data.

When Samsung announced the Galaxy S8 this week, it talked up the flagship’s facial recognition feature — if you choose, you can dispense with a password and use your face to unlock your phone.

But initial reports suggest that might not be the most secure alternative.

In a video published by iDeviceHelp on Thursday, the Galaxy S8’s facial recognition appears to be fooled by a selfie on another S8.

It’s a weakness Samsung tacitly admitted earlier this week when it clarified that facial recognition can’t be used for Samsung Pay.

“The phones can be unlocked by the face of a sleeping person or even just a photo,” an industry watcher told the Korea Herald.

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