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End-to-end encrypted file sync & sharing for teams who want to protect confidential data

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1000+ hackers failed to hack Tresorit

Plenty of people want to steal your data. Don't let them.

Hackers, scammers, careless or malicious employees, and government agencies can all compromise your confidential files. Tresorit keeps unauthorized eyes off your files. To prove this, we offered a bounty to any hacker who cracks our security. Experts from MIT, Stanford and 47 other institutions tried. No one succeeded.

  • $50,000 prize
  • 1056 hackers
  • 468 days
  • 0 hacks
Work with your team securely, wherever you are

Work with your team securely, wherever you are

Collaborate across offices or on the road. Zero-knowledge access from any browser, desktop, Android, iOS, Blackberry and Windows Phone device.

Send confidential files easily Send confidential files easily

Send confidential files easily, "unsend" them if you need to

More than 30% of employees have sent email to the wrong person. Email attachments can't be "unsent," putting your sensitive files at risk. With Tresorit, revoking access only takes a click.

Rest easy knowing your team keeps business data safe Rest easy knowing your team keeps business data safe

Rest easy knowing your team keeps business data safe

Employee error is the #1 cause of data breaches, but you won't have to worry about mistakes. Prevent access from mobile devices. Limit access to office desktops. Suspend any team member's access with a click.

Bullet-proof security for your files. Tested by 1000+ hackers.



Data is encrypted before it leaves your device. Only you and those who you share with can access your data.

Swiss privacy

Swiss privacy

You are protected from foreign surveillance and data warrants by Swiss privacy law. Datacenters are located in the European Union.

Digital rights management

Digital rights management

Access to any Office document can be modified or revoked in an instant, even if a file was downloaded to a device.

Proven security

Proven security

1000+ hackers, including experts from MIT and Stanford tried to break our security for $50,000. No one succeeded.



Tresorit security is fully HIPAA compliant. Datacenters meet ISO27001:2013 standards and comply with a host of other certifications.

Learn why even our admins can't see your data

10,000+ teams and businesses work securely with Tresorit

With Tresorit, files can no longer be accessed and distributed after an M&A transaction is over. Switching from Dropbox was simple.

Robert Frodsham
Robert Frodsham,
Little Venice Partners

Clients were frustrated with encrypted email. Sharing with Tresorit is easy. Our clients appreciate the security, and we won't get fined.

Guy Applebee
Guy Applebee,
Alpha Independent Mortgages

Attorneys don’t need to struggle with mobile VPN anymore. Tresorit lets them work on a tablet or phone when they’re with clients.

Gregory Gulliver
Gregory Gulliver,
Apogee Law Group

Ready to start working securely?

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“The security firm Tresorit offers increased privacy options to developers using Apple's CareKit platform. This option will help apps reach HIPAA compliance.”

Digital Trends

“Tresorit, the encrypted cloud storage company launches free end-to-end encryption services for nonprofits and activists to secure their communications and data.”

Business Insider

“Apple is increasing the security of CareKit, its health app framework, by offering an integration with ZeroKit, developed by security firm, Tresorit.”

tom's IT PRO

“Tresorit is among the top companies that compete in secure cloud storage, and it offers lots of flexibility for businesses.”


“More than 1,000 hackers, including MIT, Stanford and Harvard have failed to break into Tresorit's system”

Tech Republic

“Tresorit is an enterprise cloud standout with security features galore”

  • Mashable
  • Digital Trends
  • Business Insider
  • tom's IT PRO
  • TNW
  • Tech Republic