🧠 The 2026 International Olympiad in Artificial Intelligence starts today.
As a token of support for those who will reinvent our civilization, we'll issue 🏆 240 exclusive Intelligence Cups to the winners.
💵 We guarantee minimum buyback prices ($1,000 per Gold Cup, etc.), but the cups' limited supply may make them worth much more on the secondary market.
Good luck, AI coders! 🍀
Telegram is back on the app store
Telegram was removed from the Apple App Store for a few hours. The reason is still unknown, though it was likely due to an issue on Telegram's side. It's now back on the App Store.
Apple temporarily removed Telegram from the App Store in several countries after identifying content that violated its policies on child sexual abuse material (CSAM). Telegram responded by promptly removing the offending content, banning the responsible user, and taking the necessary steps to comply with Apple's policies. As a result, the app was restored to the App Store shortly afterward.
The incident highlights Apple's strict enforcement of its App Store safety guidelines and the increasing pressure on messaging platforms to strengthen their content moderation practices.
Source : 💌💌💌
🍎 Last night, Apple briefly removed Telegram from the App Store because a single user had planted illegal pornographic content in a public group chat.
⬅️ Telegram was restored within hours. But I want to explain what happened — to warn other app developers and help protect online communities from similar attacks.
🧹Because Telegram quickly removes illegal content from public groups using user reports, AI filters, content hashes, and other moderation tools, the attacker had to resort to a technical trick. He inserted AI-modified illegal content by editing an old message in an active group chat. As a result, the content was effectively hidden from the group’s members, preventing them from seeing and promptly reporting it.
💰 The attacker was a takedown extortionist: someone who demands ransom from group owners in exchange for not targeting their communities. These extortionists use automated accounts to plant illegal content in public groups and then report it directly to Apple, attempting to trigger the removal of legitimate communities whose owners refused to pay them.
🤝 From a practical standpoint, illegal pornographic content in Telegram’s public groups is not a systemic problem. Our moderation is effective. The fact that attackers must resort to backdated, effectively invisible content and other technical tricks proves this.
⚠️ However, there are two important lessons here for app developers and online communities:
— Extortionists have found a way to manipulate Apple into overreacting. Apple removed Telegram from the App Store before contacting us. This creates a potential systemic risk for every mobile app that hosts user-generated content. If an app used by more than a billion people can be removed from the App Store without prior warning, any app can be.
— The tactics used by takedown extortionists are evolving, putting communities across social platforms at risk. Telegram has extensive experience identifying the tricks used by coordinated reporting gan
Apple's App Store desperately needs competition worldwide. Apple capriciously removes a vital communication and privacy tool from availability to a billion users, and sadly this is business as usual.
- Tim Sweeney (Epic games founder and CEO) via X