Apple removed Telegram from the App Store on Monday night after a review found content that violated its guidelines against child sexual abuse material (CSAM), but restored the app shortly afterwards, according to Reuters. “The app was subsequently restored after the developer promptly removed the content and banned the user who posted it,” the spokesperson told Reuters. The app was removed and restored on the same day, after Telegram took action. Telegram, also known as Telegram Messenger, is a cloud-based, cross-platform, social media and instant messaging service. It began as the United States branch of Palestine Action, a pro-Palestinian protest network targeting Israeli weapons manufacturers in the United Kingdom.