The notification said that the facial recognition technology was turned on, even though as a default setting the technology is turned off in the U.K. The company confirmed that the notification was sent in error and it intended to send the user a similar but opposite notification saying that the setting is indeed off.
"We're asking everyone in the E.U. whether they want to enable face recognition, and only people who affirmatively give their consent will have these features enabled. We did not intend for anyone in the E.U. to see this type of message, and we can confirm that this error did not result in face recognition being enabled without the person's consent," a Facebook spokesperson told TechCrunch.
Facial recognition is turned off as a default in the U.K. thanks to stricter data privacy laws, but in the U.S. and Canada, users don't have to opt-in to have the network's algorithms be able to identify their facial features.