TLDR
- Vitalik Buterin replaced Gmail with ProtonMail and Google Maps with OrganicMaps in 2026.
- He switched to Signal as his main messenger in 2025, leaving Telegram behind.
- Buterin is testing local AI models to avoid sharing data with cloud platforms.
- He urges reduced use of centralized services to protect location and message privacy.
Ethereum co-founder Vitalik Buterin has called 2026 “the year we take back lost ground in computing self-sovereignty.” In a detailed post on X, he outlined a series of changes to his personal software use aimed at reducing reliance on centralized and data-collecting platforms. These changes cover private communication, navigation, email, and document storage, as well as early steps toward running artificial intelligence models locally.
Personal Software Shift Toward Decentralization
Ethereum co-founder Vitalik Buterin shared an update on the software he uses in a post on X, stating that 2026 is the year to reclaim computing self-sovereignty. He described switching from widely used centralized applications to open-source, privacy-focused alternatives.
In 2025, Buterin adopted Fileverse, an encrypted and decentralized document editor, replacing mainstream cloud-based tools. He also transitioned from Telegram to Signal as his main messaging app. Signal encrypts all messages end-to-end and stores limited metadata, unlike Telegram, which only offers full encryption in optional secret chats.
In 2026, Buterin made further changes. He now uses OrganicMaps, based on OpenStreetMap, instead of Google Maps. OrganicMaps is privacy-focused and processes location data locally. For email, he moved from Gmail to ProtonMail, which offers encrypted communications by default. Buterin also said users should favor encrypted messengers over traditional email for private communication.
Exploring Local AI Models and Limitations
Buterin is exploring the use of local large language models (LLMs) on personal devices. He noted that recent developments have made it possible to run AI tools without sending data to external servers.
However, he emphasized that user interfaces and integrations remain underdeveloped. He said many current tools are split across different repositories and lack a unified user experience. Power usage is also a concern. Buterin mentioned that keeping local models like Ollama always running increases his laptop’s power consumption to 35 watts.
He suggested combining multiple privacy measures, such as zero-knowledge payments, trusted execution environments, and automated local data filtering, to reduce data exposure when using cloud-based models. He called for a continued push toward efficient local models, while recognizing that this space is still evolving and fragmented.
Privacy Advocates Echo the Message
Privacy advocates such as Naomi Brockwell have supported the use of local AI models as a privacy-preserving approach. Brockwell has previously said that privacy means autonomy and supports encrypted messengers, decentralized platforms, and local services to avoid surveillance.
Her stance aligns with Buterin’s message about minimizing the sharing of personal data with large tech firms and governments. Brockwell continues to educate users on practical privacy tools.
The broader conversation around privacy and digital rights has also been shaped by proposals like the European Union’s Chat Control initiative. It sought to enable pre-encryption scanning, which raised alarms among civil liberties groups and technologists.
Criticism of Buterin’s Position
However, Buterin’s comments did not go unchallenged. The Cloud Foundation issued a statement criticizing the Ethereum co-founder’s approach. “Vitalik is using a common tactic of information dumping,” the statement said. “He drops numerous threads discussing technical issues to create the illusion of depth and substance.”
The Foundation also questioned Ethereum’s relevance in the AI space. “Ethereum is not a player in the AI space. And never will be. If you can’t host AI, you aren’t in the conversation.” Despite the criticism, Buterin continues to encourage the adoption of open-source, decentralized, and local-first software to reduce dependency on centralized systems.
