Cara Rau
On 15 February 2025, the Bengali-language Islamic State-supportive At-Tamkeen Media Foundation created a room on Element. At-Tamkeen Media is an unofficial media outlet that spreads Islamic State propaganda online, targeting the Bengali-speaking community. According to its website, Element is a messaging platform that emphasises secure communications through features such as end-to-end encryption and decentralisation. The use of highly secure platforms such as Element by extremist actors poses a challenge for content moderation and the online-offline safety nexus. This Insight will discuss At-Tamkeen’s recent expansion onto new social media platforms and explore possible avenues for countering its growing online presence. At-Tamkeen should not be confused with At-Tamkin, an Indonesian IS-supportive media outlet.
At-Tamkeen and its online presence have existed for several years. The group has posts on Facebook dating back to as early as 2022. However, beginning in February and March 2025, the group began to expand onto new social media platforms where it did not previously have a presence.
The At-Tamkeen chat room has been active on the Islamic State’s Rocket.Chat server since 1 March 2025, and the group is also active on SimpleX. At the time of writing, the group’s GemSpace and Telegram accounts are suspended. According to Rocket.Chat’s Github repository, it is a free and open-source, fully customisable communications platform for organisations with high standards of data protection. Users can host Rocket.Chat on their own servers, meaning they can run and maintain the service using a private web server instead of relying on a third-party outside of the administrator’s control. This is one of the features that makes the platform highly secure. According to its App Store page and website, GemSpace is a messaging app where chats are encrypted, calls are protected, and communication spaces are private or public, as desired. SimpleX is described on its website as a messenger focused on providing complete privacy to users. Further details on SimpleX will be explored below.