Is Proton Business Suite safer than Microsoft 365?

Proton offers more security and privacy than Microsoft 365 because we use end-to-end encryption by default across all our tools. While Microsoft allows you to enable end-to-end encryption for some services, its default configuration gives Microsoft the ability to view and scan your business data. Without end-to-end encryption, your files could be decrypted and leaked in a data breach or used to train AI. Unlike Microsoft, Proton is also based in a privacy-friendly jurisdiction, protected from warrantless surveillance.

How easy is it to migrate from Microsoft 365 to Proton?

Migration is straightforward and mostly happens in the background, so it can be completed with minimal downtime. Our Easy Switch [/support/easy-switch] tool automates the transfer of emails, contacts, and calendars from your Microsoft 365 account. If you need help, our Support team will get you set up.

Is the Proton Business Suite compatible with the Microsoft file formats my team uses?

Yes, you can store Microsoft Office file formats on Proton Drive without converting them. Proton Docs and Proton Sheets support importing and exporting files in common formats such as .docx, .txt, .xlsx, and .csv. After migrating your files, your team can continue working on existing documents with no interruption.

What if I don’t need all the Proton business apps?

You can choose plans specific to your needs. We offer flexible business plans for Proton Drive, Proton VPN, Proton Pass, Proton Mail, and Lumo. See all our plans. [/business/plans]

I have a few specific needs. How can I find out if Proton is right for my business?

Proton is built for any business — from sole proprietors to large enterprises. Simply contact our team [/support/contact] and let us know what you need. We’ll get back to you quickly.

A secure and private Microsoft 365 alternative

Proton Business Suite protects your business with productivity tools that are end-to-end encrypted and secure by design. From email and cloud storage to collaborative documents, sheets, and generative AI — get the tools your team needs while staying in control of your data.

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Proton Business Suite vs. Microsoft 365

Unlike Microsoft 365, which collects extensive user data, Proton Business Suite keeps your business data private with end-to-end encryption. Even we can't access it.

Comparison of Proton Business Suite vs. Microsoft 365
No-logs AI assistant	Yes	No
	Proton Business Suite	Microsoft 365
Default end-to-end encryption	Yes	No
Shareable links with password and expiration controls	Yes	No
No file size limits	Yes	No
VPN	Yes	No
Password manager	Yes	No
Open source	Yes	No
Privacy-first jurisdiction	Switzerland	US
Email and calendar	Yes	Yes
Cloud storage and file sharing	Yes	Yes
Collaborative documents and spreadsheets	Yes	Yes
Web, desktop, and mobile apps	Yes	Yes
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Privacy-first productivity tools: A secure Microsoft 365 alternative

Empower your team to communicate, collaborate, and stay productive with tools that protect sensitive business data from unauthorized access.

A fully end-to-end encrypted Outlook alternative that keeps your business communications private. Zero-access encryption ensures only you and your intended recipient can read emails — not even Proton has access. Advanced features such as custom email domain support, granular admin controls, and phishing protection deliver the flexibility and protection organizations expect.

Get a secure business email

Built into Proton Mail, Proton Calendar delivers end-to-end encryption for your team's scheduling needs. Manage team calendars and share availability without exposing data to third-party tracking. Keeping your schedule organized and confidential has never been easier.

Start using a private team calendar

An AI assistant that works for you and doesn’t collect and exploit your data. Lumo helps teams write, summarize, and analyze information without training on your conversations or storing your prompts. Designed with privacy at its core, Lumo ensures your ideas, documents, and business IP remain fully under your control.

Find out about our AI assistant for business

Securely store and share large files without restrictions. End-to-end encryption keeps everything safe from unauthorized access, while password-protected links and expiration controls allow you to manage who has access to your files and for how long.

Get secure cloud storage

A Microsoft Word and Excel alternative built for privacy. Proton Docs and Sheets use a secure editor to ensure that all your work is end-to-end encrypted by default. Collaborate freely and with greater peace of mind knowing that your content will never be analyzed, shared, or monetized.

Simplify collaboration with Docs and Sheets

Secure your team’s passwords and simplify onboarding and offboarding. Proton Pass uses end-to-end encryption to securely store and share passwords, passkeys, and sensitive notes. Enforce strong password and multi-factor authentication policies across your team.

Discover our password manager

Protect your business’s internet traffic on any network. Proton VPN encrypts connections to prevent surveillance, data leaks, man-in-the-middle attacks and other network security threats — especially critical for remote teams and employees working on public WiFi. Dedicated IPs help you control and segment access to your internet network.

Protect your organization’s data with the best alternative to Microsoft 365

Unlike Microsoft 365 and other major productivity platforms, Proton Business Suite is designed to keep your business information exclusively under your control.

End-to-end encryption

End-to-end encryption is at the core of the Proton Business Suite. All your emails, files, and documents are encrypted on the user’s device before moving to our servers. This means not even Proton can see your files, and they would remain safe even in the event of a data breach.

Password-protected sharing

For secure file sharing, create shareable links with password protection and automatic expiration directly within Proton Drive. You have full control over who has access to your files. Even if a link is forwarded, your files stay protected behind the controls you’ve set.

No data mining

Proton is supported by paying subscribers. We don’t scan your emails and files, nor do we track your activity for monetization. All your work on Proton Business Suite stays private; it’s never used to train AI or shared with third parties.

Swiss privacy

Proton is based in Switzerland with data centers exclusively in Europe, which means your data is protected by strict privacy laws and outside of US jurisdiction. This protects your data from surveillance, geopolitical risk, and third-party sharing.

Why choose Proton Business Suite?

Comprehensive team management

A central admin dashboard keeps you in control. Onboard team members, adjust permissions, and customize settings.

Disruption-free migration

Use Proton’s Easy Switch tool to make the switch. Our dedicated Support team is available to help you through the process step by step.

Works across devices

Access your work on any device with our encrypted apps for web, mobile, and desktop, including Android, iPhone, macOS, Windows, and Linux.

Enterprise-grade reliability

Rely on Proton for 99.95% uptime and priority support, backed by a service level agreement (SLA).

Transparent and open source

All Proton apps are open source and independently audited to verify our security claims.

Compliance-ready suite

Comply with privacy regulations like GDPR and HIPAA with Proton’s end-to-end encryption and zero-access architecture.

Quick deployment

A simple setup process and user-friendly UI mean less fiddling and more productivity.

Your data, your rules

Granular controls let you set permissions, enforce policies, and define rules that match your needs.

Get Proton for Business

Trusted by over 100,000 organizations worldwide

30k+

Finance and technology professionals

10k+

Growing startups

15k+

Non-profit organizations

20+

EU Government Organizations out of over 80

+100 million

Accounts

Make the switch to Proton Business Suite

Empower your team with encrypted productivity tools that keep your business data in your control.

Get Proton for Business Request a demo

Frequently asked questions about Proton Business Suite vs. Microsoft 365

Is Proton Business Suite safer than Microsoft 365?: Proton offers more security and privacy than Microsoft 365 because we use end-to-end encryption by default across all our tools. While Microsoft allows you to enable end-to-end encryption for some services, its default configuration gives Microsoft the ability to view and scan your business data. Without end-to-end encryption, your files could be decrypted and leaked in a data breach or used to train AI. Unlike Microsoft, Proton is also based in a privacy-friendly jurisdiction, protected from warrantless surveillance.
How easy is it to migrate from Microsoft 365 to Proton?: Migration is straightforward and mostly happens in the background, so it can be completed with minimal downtime. Our Easy Switch tool automates the transfer of emails, contacts, and calendars from your Microsoft 365 account. If you need help, our Support team will get you set up.
Is the Proton Business Suite compatible with the Microsoft file formats my team uses?: Yes, you can store Microsoft Office file formats on Proton Drive without converting them. Proton Docs and Proton Sheets support importing and exporting files in common formats such as .docx, .txt, .xlsx, and .csv. After migrating your files, your team can continue working on existing documents with no interruption.
What if I don’t need all the Proton business apps?: You can choose plans specific to your needs. We offer flexible business plans for Proton Drive, Proton VPN, Proton Pass, Proton Mail, and Lumo. See all our plans.
I have a few specific needs. How can I find out if Proton is right for my business?: Proton is built for any business — from sole proprietors to large enterprises. Simply contact our team and let us know what you need. We’ll get back to you quickly.