Please no. I do not and will never want any kind of LLM reading my emails, or my calendar, or my documents; the purported benefit is already not valuable to me (I fear I am someone who is perfectly capable of creating my own calendar events and writing my own emails), but is especially meaningless when weighed against the potential future risks -- the whole idea of Lumo as a privacy-first LLM is that it is self-contained and doesn't keep any of your data for any longer than necessary. That wouldn't be possible if it were always "active," the way it would have to be, to get the kind of functionality you're asking for.

If this does come to pass, I second the suggestions of some below commenters of requiring a Lumo plugin install to get that kind of functionality, and CERTAINLY at the absolute, bare minimum, allowing it to be 100% opt-out.

Proton I am begging you not to do this

Please don't! 😭

Please don't turn Proton services into arbitrary expanded privacy risks!

Regardless of how much Proton is becoming mainstream, please PLEASE don't start enshittification of the strong protection it used to give just to satisfy the popular demands by people who have 0 knowledge of cybersecurity!

I know eventually it's inevitable and we'll have to move on. But please don't do that yet. Don't forget the core of the services that you're actually selling!

Please, PLEASE!!! Make this optional, I don't want a gmail situation where AI is shoved in my face via ads:/

+1 for Standard notes

jotting down notes and having AI-supported features for structuring, finding etc. would be game changing for me

I can see why people desire this.

That said, for a variety of reasons, I absolute do NOT want AI integrated into everything.

As is, I do not us Lumo, and I have no intention of ever using it.

Ar this point, Lumo is entirely opt in, with explicit actions required by the end user to actually use it.

If this must be added, please keep that configuration. Either a setting that must be explicitly enabled, or better yet, a plugin that must be explicitly installed.

plugin of some sort for standard notes please

I personally don’t want this. One of the reasons I use Proton is its focus on privacy, simplicity, and clean, lightweight apps. Integrating Lumo into Mail/Calendar/Drive could make these apps feel bloated and push them toward an “all-in-one” AI-heavy direction that not everyone wants.

It’s great that Lumo exists for those who want it, but I’d prefer to keep the core Proton apps fast, minimal, and free of AI features. Ideally, any such integrations should be fully optional — or better yet, not added to the main apps at all.

Lumo being able to read my calendar would be a game changer.

Proton, if you're going to implement this; Please give us the option to disable it, or allow/decline sending data per request with specific requirement.

I do not like the idea of my E2EE ecosystem sending my unencrypted data to an LLM just cause it misunderstood me.

I'd like to be able to query the volume of email I am receiving per day/week/month.

Hello, I would love to be able to use the API of Lumo, I may even pay extra if necessary but the way i use AI is mainly with other apps and I'd love to support Proton more

AI hallucinates / needs to hallucinate more when it doesn't have context. Notion 3.0 with agent has shown the power of context when I am writing something on one page it is able to hook in relevant chunks and rely much less on hallucinating. It is also able to self-replicate or set up systems to manage multiple hats, such as creating a new tone for itself and organising when to reference that tone.

This is where Lumo needs to go to be able to stay relevant in this day and age - we need private secure LLM while maintaining context to everything a business is doing, to stay efficient. Since seeing Notion AI in action this is the first time I've considered moving away from Proton Mail for my business use, as I need the efficiency.

We need Lumo in Proton Mail, Proton Calendar, Proton Drive, Docs, while maintaining Proton's mission. Otherwise, it's just a clunky standalone LLM that keeps needing user intervention to tell it to correct key facts. Better yet, expand Docs to achieve Notion level of usability and databasing so EVERYTHING can live on Proton. The "just a cloud" model that Proton Drive is based on is over 10 years old, innovation is needed not just replication with security added back in.

And please make LUMO transcribe from Proton Meet straight into a Proton Doc that is then synced back into the Proton Calendar event!

Humbly,

A big fan of Proton's mission who also wants efficiency

It would be nice if you could ask it to take actions too, like summarise recent emails, or delete unimportant emails.

Make Lumo available in Proton Docs as an assistant that is triggered by comment (special type if necessary). This allows comments to persist (with time stamps) for Lumo to remember user guidance, while also keeping whatever is being edited always as one single source of ground truth for both bot and user.

being able to ask Lumo to create a calander event for x time with x details would be extremely nice. seeing as gemini does that for google calander its the only reason im still a little bit in the google ecosystem.

I would pay more for this feature - the biggest issue from my perspective with agentic AIs is a trusted ecosystem. Evolving Lumo to act as a personal AI with MCP-esque tools to manage calendar events, email responses, files, todos, etc. would be game changing.

Not having Proton mail integration is a missed opportunity.
Having Lumo summerize my mails from yesterday, or come up with a reply or tell me which mails need an immidiate response would be awesome for productivity

I with co-operation with IBM created V2 prototype of the human-side of AI, I am the prototype of AI today, half of the world's AIs..think and solve problems MY way - willing to test myself with someone.

Just wanna help....here's a good start? :D

I love the idea of bringing Lumo for sentiment analysis straight into Proton Mail. A “Check tone” button that opens a small dialog before sending would let users see the overall sentiment, the active contact tags, and a quick list of suggested rewrites. Tags (e.g., Client, Friend, VIP, custom tags) could store a default tone preset (formal, friendly, concise, etc.) so the AI can automatically adapt its suggestions to each relationship. Users would still have full control... accept, reject, or edit any suggestion, change the preset for that single message, or skip the analysis altogether. All processing would stay inside Proton’s encrypted environment, preserving privacy while giving writers a helpful, optional tone coach. Simple toggles for basic badge‑only feedback, live hints, or a full report would let everyone choose the level of assistance they want.

Kindly summarized by Lumo after brainstorming this idea