en.Wedoany.com Reported - The decentralized social media platform Mastodon has announced plans to introduce end-to-end encryption technology for private messages. This initiative is supported by a €614,000 grant from the Sovereign Tech Fund, backed by the German government, aiming to enhance user privacy protection. The funds will be allocated to five projects, including automated content detection and shared blocklist functionality.
End-to-end encryption ensures that only the sender and recipient can view the message content, preventing third-party access. In the current context of heightened surveillance concerns, this provides an additional layer of privacy for personal communications. Similar technology is already used in WhatsApp, Signal, and Apple iMessages. Mastodon's integration will be based on the ActivityPub standard, and will be compatible with
According to Wedoany News, on April 14, 2026, the decentralized social media platform Mastodon announced that it has received a service agreement funding of €614,000 (approximately $724,000) from the German government-backed "Sovereign Tech Fund." This funding will be used to advance the development of five core projects, with the most notable being the addition of end-to-end encryption (E2EE) functionality for private messages, which is expected to be officially launched in 2027.
In addition to end-to-end encryption, Mastodon's funded projects also include establishing a server-to-server blacklist synchronization mechanism to strengthen content moderation, introducing "Fediverse-assisted service providers" to support remote media storage and reduce operational costs, implementing automated content detection to combat spam, and improving technical documentation to enhance the server deployment experience. Mastodon emphasized that €90,000 of the total funding has been reserved to support other Fediverse projects, promoting the development of shared infrastructure.
The technical implementation of end-to-end encryption will rely on collaboration with the Social Networks Foundation, which has been leading the ActivityPub protocol-based end-to-end encryption project since December 2025. ActivityPub, as an open social protocol supported by Mastodon and even Meta's Threads, is still in the process of finalizing its encryption system specifications. A Mastodon spokesperson stated that the project is still in its early stages, and the team will focus on interoperability testing and the potential impact of encryption on content reporting and moderation processes. If the tests are successful, the feature will be implemented on mastodon.social and other servers that choose to enable it. Currently, Mastodon does not offer a traditional direct messaging function, only a "private mention" option. This feature is essentially a post with restricted visibility rather than an encrypted conversation, and the naming difference has caused confusion among some users.
Mastodon currently has between 750,000 and 1 million monthly active users within the Fediverse ecosystem. The platform has recently promoted several updates, including simplifying the onboarding process for new users, launching monetization tools for creators, and optimizing content discovery mechanisms, aiming to lower the barrier to entry for decentralized social networks. The introduction of end-to-end encrypted private messaging is expected to strengthen Mastodon's differentiated advantage in the field of privacy protection, but it also presents regulatory challenges, as encrypted communications may hinder server providers' proactive detection of prohibited content. If implemented successfully, Mastodon will become the first mainstream decentralized social platform to achieve standardized end-to-end encryption at the ActivityPub protocol level.
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