The new Pixel 4 smartphone will soon be updated to require eyes to open for the face unlock feature after security concerns arise.
The move was announced by Google after the first testers of the new device were able to use face unlocking with their eyes closed, prompting fears that it could lead to unauthorized access to the device.
It was also suggested that someone else could get on the phone holding it in front of the sleeping owner's face.
In response, Google said the feature met security requirements and said it would "improve facial unlocking over time."
The technology company now says it is working on an option for users to demand that their eyes be opened to unlock the phone, which will be delivered in a software update "in the coming months."
It was suggested that someone else could access the phone by holding it in front of the sleeping owner's face.
A Google spokesman said, "In the meantime, if any Pixel 4 users are concerned that someone might pick up their phone and try to unlock it while their eyes are closed, they can turn on a security feature that requires a PIN. , default, or password for the user next unlock.
"Pixel 4 Face Unlock meets security requirements as strong biometrics and can be used for payments and app authentication, including banking apps.
"It is resistant to invalid attempts to unlock by other means such as masks."
Pixel 4 is Google's first smartphone to feature face unlock security measures, following the likes of Apple, which introduced the feature on the iPhone in 2017.
Apple's Face ID unlocking system requires the user's eyes to be open and to look directly at the camera to access the device.
Pixel 4, which goes on sale in the UK on October 24, features Motion Sense, which allows users to do things like change tracks and postpone alarms without having to touch the device. It also has an adaptive battery that learns the user's favorite applications and reduces the power of those that are rarely used.
The model follows the cost-effective launch of the £ 399 Pixel 3a for consumers turned off by more expensive devices.
The Pixel 4 and 4 XL have two rear cameras and will sell for $ 799 (£ 669) for the 64 GB version and $ 899 (£ 829) for the larger XL.
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