Facebook has announced it is making its facial recognition setting available to all users - but you'll have to turn it on in order to use it.
The social network giant said the function will be turned off by default amid ongoing unease about the technology.
The company began asking users in the UK if they wanted to allow enable its use to identify them in photos and videos in April of 2018.
But those who do not already have the face recognition setting will receive a notice from today, giving them the option to activate it.
The feature will remain switched off for those who dismiss the notice, as well as for any new users to the platform.
How does the technology work?
Facebook's face recognition system creates a "template" of a user's face based on other images they are tagged in.
This means it can inform users if someone uploads a photo of them, even if they have not already been tagged.
Face recognition is a replacement for tag suggestions, which gave users the power to decide whether friends receive a suggestion to tag them in a photo they had uploaded.
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The social network said: "We've continued to engage with privacy experts, academics, regulators and people on Facebook about how we use face recognition and the options you have to control it.
"We've made the steps to update your settings clearer and you can opt to leave your setting off right in the notice, as opposed to having to go to a separate screen."
The development comes after the company recently lost an appeal in the US over an alleged breach of Illinois state laws on biometric data privacy.
Use of facial recognition technology in public spaces is also under the spotlight in the UK, after privacy watchdog the Information Commissioner's Office said it was "deeply concerned about the growing use of facial recognition technology".
