The social network Twitter has decided to prevent its members from posting animated PNGs. Indeed, these have been used in attacks targeting people suffering from epilepsy, attempting by flashes of light to provoke seizures.
It was obviously through a tweet that the news was announced. It follows a bug discovered concerning the autoplay of these PNG files.
Animated PNG used to target epilepsy victims
If animated GIFs are very common, they suffer from some problems, namely a limitation to 256 colors. The animated PNG allow to drop this constraint and make moving images almost at the level of quality of short videos. They are more and more widespread, but problematic according to Twitter. These could be in use to cause seizures for people with epilepsy.