Facebook said Tuesday it plans to stop using facial-recognition software that could automatically recognize people in photos and videos posted on the social network, marking a massive shift both for the tech industry and for a company known for collecting vast amounts of data about its billions of users.

Facebook, which changed its company name to Meta in late October, also said it plans to delete the data it had gathered through its use of this software, which is associated with over a billion people's faces.

The move, announced in a blog post authored by artificial intelligence vice president Jerome Pesenti, comes as the company is widely scrutinized for the potential real-world harms of its social platforms in the wake of a whistleblower's leak of hundreds of internal documents.

Pesenti wrote that the world's largest social network will shutter its facial-recognition system in the coming weeks "as part of a company-wide move to limit the use of facial recognition in our products."

Facebook will still be working on facial recognition technology, however, and may use it in its products — range from social networks to a futuristic pair of picture-taking glasses — in the future."

Looking ahead, we still see facial recognition technology as a powerful tool, for example, for people needing to verify their identity, or to prevent fraud and impersonation," Pesenti wrote.

In his post, Pesenti pointed to concerns about the appropriateness of the technology, which has come under scrutiny as it's increasingly used but, in the US, at least, barely regulated.

"We need to weigh the positive use cases for facial recognition against growing societal concerns, especially as regulators have yet to provide clear rules," Pesenti wrote.

Kirsten Martin, a professor of technology ethics at the University of Notre Dame, called the decision "a good example of regulatory pressure", as the company's facial-recognition system had long been targeted by regulators.

"The volume of images Facebook had to maintain and secure was a constant vulnerability for Facebook — both in terms of cost but also in terms of trust," Martin said.

The move to both stop using the software and to wipe the data that is related to existing users of the feature marks an about-face for Facebook, which has been a major user and proponent of the technology.

For years, the social network has allowed people to opt in to a facial-recognition setting that would automatically tag them in pictures and videos.

Pesenti wrote that more than a third of the company's daily active users had opted in to the setting — or more than 643 million people, as Facebook had 1.93 billion daily active users in the third quarter of 2021.

Facial recognition software has been fraught with controversy, as concerns mount about its accuracy and underlying racial bias. For example, the technology has been shown to be less accurate when identifying people of color, and several Black men, at least, have been wrongfully arrested due to the use of facial recognition.

While there's no national legislation regulating the technology's use, a growing number of states and cities are passing their own rules to limit or ban its use.

Pesenti pointed out that halting use of facial-recognition software will also mean that Facebook's automatically generated descriptions of images for the visually impaired will no longer add names from those who were recognized in pictures.