Have you ever stopped to think who else is “reading” that strategy document you just created? In the era of artificial intelligence, the short answer is: almost everyone.
We live in a time where tech giants have an insatiable appetite for new data to train their language models. And guess what… your marketing proposals, your editorial calendars and your clients’ budgets are the main course.
If until now you knew Proton for its VPN or its secure email, get ready, because Proton Drive, Docs and Sheets have arrived to stand up to traditional tools like Google Workspace and Microsoft 365.
And they do it with a secret weapon that, ironically, consists of not having integrated artificial intelligence.
The elephant in the room: Privacy in the age of Gemini and Copilot
It is no secret to anyone that companies like Google use the data that circulates through their ecosystem to train their AI, Gemini, just as they do to fine-tune their advertising machinery. As marketers, this puts us in a very delicate position.
Imagine you’re writing copy for a client’s breakthrough launch or defining a unique positioning strategy. If you use the usual tools, that data, to a certain extent, ends up feeding the model that your competition could then use.
This is where the Proton suite comes into play, launched progressively with Docs in 2024 and Sheets at the end of 2025. This alternative is presented as a collaborative workspace in the cloud that is 100% private.
The premise is simple but powerful: your data is never used to train AI, is not sold to advertisers, and is protected against security breaches.
The Swiss vault for your ideas: End-to-end encryption
The magic behind Proton Drive, Docs and Sheets lies in their end-to-end encryption (E2EE) technology. This means that absolutely everything – files, documents, spreadsheets, and even the changes you make in real time while editing – is encrypted on your own device before being uploaded to the cloud.
Proton does not have the keys to decrypt that information; therefore, the platform cannot see anything you do.
For those of us who work with clients in Spain and the rest of Europe, this is music to our ears. Being based in Switzerland, the company is governed by extremely strict privacy laws and operates outside the jurisdiction of the United States and the United Kingdom.
In addition, it fully complies with regulations such as GDPR, HIPAA and ISO 27001. Complying with European legislation when handling customer data has never been so simple.
Proton Docs: Typing without peepers
Let’s talk about day to day. Proton Docs is emerging as the perfect real-time collaborative document editor to replace Google Docs. What’s exciting is that you can collaborate live, seeing your team’s cursors and changes instantly, but with every keystroke fully encrypted.
Every word you type here is protected from AI training and corporate surveillance. You can write commercial proposals, brand strategies or confidential texts without the slightest fear.
And if you need to collaborate with a customer who doesn’t use Proton, no problem: it works through secure links for users without an account. It includes everything you’d expect: thread comments, track changes style suggestions, and options to import or export in formats such as .docx, .txt, or HTML.
Proton Sheets: Your clients’ numbers, under lock and key
The most recent crown jewel is Proton Sheets, the alternative to Excel Online and Google Sheets that arrived in December 2025.
In the world of marketing, spreadsheets are our daily bread. This is where we keep metrics, lead lists, ROI calculations, and budgets. Exposing this sensitive data to leaks or use by third-party AI is a risk no agency should take.
Proton Sheets includes standard formulas (SUM, IF, TEXT, etc.), auto charts, and multiple tabs. Like Docs, it enables real-time collaboration with access controls that you can revoke whenever you want.
And don’t worry about migration; You can directly import your current Google Sheets or Excel files (XLSX, CSV, TSV) without losing anything along the way.
Proton Drive: Your new operations center
This entire productivity ecosystem lives and syncs automatically within Proton Drive. This is not only where your documents are stored, but acts as a secure storage hub.
To share creative resources or briefings with external clients, it is unbeatable. It allows you to create password-protected links, set expiration dates, and control access level (such as who can view or edit).
Is the project finished? You revoke access with a single click. It’s the perfect ecosystem for agencies that handle sensitive data.
Let’s be honest: Pros and Cons
We like to be 100% transparent with you. Is Proton the ultimate and perfect tool for everyone? It depends on what you are looking for.
- The best: Its absolute privacy, fluid collaboration in real time and how easy it is to import and export your current files. Plus, it integrates beautifully with Mail, Calendar and VPN, ideal for distributed teams. All this at a very competitive price compared to Google Workspace.
- Please note: Being younger tools, some very advanced formulas or complex macros in Sheets are not yet available (although they cover 95% of marketing needs). Synchronization may be slightly slower if your internet connection is weak and of course it does not have built-in AI. But, as we have seen, this apparent “disadvantage” is precisely the greatest benefit for your data.
Take the leap and protect your ideas
If you too value privacy, legal protection and want a safe haven from AI scrutiny, this suite is the answer. You can start trying it today for free.
The Free plan gives you 5 GB of Drive storage and includes full access to Docs and Sheets. If you manage a team, their Business plans offer options from about $6.99 to $12.99 per month, including encrypted emails, VPN and up to 1 TB per user.
Inertia has made us believe that paying with our data is the only way to access good collaborative tools. Today, it is possible to work as a team, be productive and, at the same time, keep your strategies away from your competition’s AI.
Do you dare to try the private side of productivity? Tell me in the comments if you already knew about this suite or if you are going to give it a try.
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