Skip to main content

Twitter stops some images from animating to protect those with epilepsy

Twitter has announced that it will no longer allow Animated PNG (APNG) files to be posted by users so that people with sensitivity to motion and flashing imagery can feel more confident when using the service.

The decision comes just days after the Epilepsy Foundation revealed that its Twitter account had been the target of an attack that used flashing images in a bid to trigger seizures.

Exposure to flashing lights and particular visual patterns can cause seizures in about 3% of those with epilepsy, according to the Epilepsy Foundation. “Photosensitive epilepsy,” as it’s known, is more common among children and adolescents.

The ability to configure Twitter to prevent videos and GIFs from autoplaying allows those with photosensitive epilepsy to protect themselves from flashing media, whether it’s been tweeted innocently or as part of a malicious act. But Twitter Support said this week that APNG files are able to bypass Twitter’s autoplay settings, so it’s preventing them from being included in future posts.

Twitter said it had made the decision “for the safety of people with sensitivity to motion and flashing imagery, including those with epilepsy.”

APNG files that have been posted in the past will remain in place, and PNG files will continue to be allowed.

As most people use GIFs to post animated images, Twitter’s move to prevent APNG posts on its platform should cause minimal disruption among its community.

The Epilepsy Foundation said last week that it had filed a formal criminal complaint in connection with the attack on its Twitter account. It’s not clear if the flashing media directed at its account triggered any seizures among those who viewed it.

‘We want people to feel safe’

Responding to the incident, a Twitter spokesperson told Digital Trends: “We want people to feel safe on our service. We provide people on Twitter with the option of preventing media from autoplaying in their timelines, as well as prevent any GIFs from appearing when someone searches for ‘seizure’ in GIF search.”

It added that whenever it finds an account that is dedicated to causing offline harm, it is permanently suspended.

Flashing images on Twitter have been known to cause seizures in those with photosensitive epilepsy. In a high-profile case in 2016, for example, Maryland resident John Rayne Rivello was accused of using the microblogging platform to send a flashing image to American journalist and author Kurt Eichenwald, which had the effect of triggering a seizure. Rivello is due to appear in court in January 2020 when he will reportedly plead guilty to aggravated assault.

Want to turn off autoplay for videos and GIFs in Twitter? Tap on your profile picture, then on Settings and privacy. Next, tap Data usage and then Video autoplay. Finally, select Never.

Updated on December 27, 2019: Clarified that APNGs can no longer be posted, while those posted before the ban will remain in place.

Editors' Recommendations

Trevor Mogg
Contributing Editor
Not so many moons ago, Trevor moved from one tea-loving island nation that drives on the left (Britain) to another (Japan)…
WhatsApp now lets you add short video messages to chats
WhatsApp logo on a phone.

You can now send short video messages in a WhatsApp chat, Meta announced on Thursday.

A video message can last for up to 60 seconds long and is protected with end-to-end encryption.

Read more
Musk shows off new X sign on top of San Francisco HQ, but the city’s not happy
The new X sign replacing the Twitter logo on the company's headquarters in San Francisco.

Soon after Elon Musk tweeted a drone video showing a new white light in the shape of an X atop the company’s headquarters in San Francisco on Friday, the Associated Press (AP) reported that the city had decided to launch in investigation over concerns that the sign's installation may have broken rules.

The X logo is replacing the iconic Twitter bird as Musk continues efforts to rebrand the social media platform that he acquired in October.

Read more
Threads has lost half its users, according to Meta chief Zuckerberg
Instagram Threads app.

Meta’s Threads app looks set for an uphill climb if it’s ever to take the microblogging crown from Twitter, which is currently being rebranded as X.

Meta CEO Mark Zuckerberg recently told employees that despite its impressive start in early July when around 100 million people activated a Threads account in its first five days of availability, more than half of those users have stopped checking in.

Read more