For business

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Defend against email fraud and phishing. Make encryption an essential part of
your cybersecurity strategy with Proton Mail today.

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- For business
- Privacy guides
Learn how to use an authenticator app to protect your workplace accounts with
two-factor authentication (2FA).

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Learn more about the difference between authentication and authorization, key
examples, and how they can protect your business.

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- For business
Critical Microsoft SharePoint attack compromises hundreds of government
agencies, universities, energy operators, and companies worldwide.

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Looking to add Proton's apps and features into your business? Try them all with
confidence through our 14-day free trial.

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Archiving email with Proton can boost security, make employees more efficient,
ensure your business is legally compliant, and prevent data breaches.

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Learn how to offboard employees and contractors securely — with free
ready-to-use offboarding templates you can edit in Proton Docs.

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One in five law firms reported a cyberattack in the past year. These are the key
tools and strategies that can help protect your firm from costly breaches.

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Learn how to start an email professionally with our top greetings, openers, and
formal examples, and find out what to avoid (and why).

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Struggling with how to end an email? Learn about the best professional email
sign-offs, common mistakes to avoid, and real-world examples.

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Your email address and passwords aren't the only information hackers can use to
scam you. Here's what someone can do with your phone number — and how to protect
it.