Tresorit makes sure that, even if they wanted to, it would be impossible for them to access users’ stored files.

Businesses and average usersĪ-ha! It makes much more sense know. Even if a hacker or a surveillance body accesses our servers and the encrypted files, they cannot read them. This technology guarantees that files are readable only for the sender and the recipients, and no third parties beyond them. This ensures that we have “zero-knowledge” of the file contents: we never see files in plaintext, unencrypted format. The encryption keys to encrypt and decrypt these files are never sent to the cloud in a readable format, so our servers never have access to them and to the user’s file contents.

So I asked: What do these mean?Ĭlient-side, or end-to-end, encryption means that we encrypt the user’s files on the user’s device before they are uploaded to the cloud. Looking through the company’s webpage, I stumbled upon “client-side encryption” and “zero knowledge protocols” and I got stuck. Our goal since the beginnings has been to respond to the growing demand for privacy and security and create a service that enables users to fully control what happens to their data due to the built-in end-to-end encryption and other security and control features.įor non-technical heads like me, many important differences between Tresorit and other solutions are not understood because of terminology. Also, numerous mega breaches showed that hackers are increasingly after the information stored in the cloud. Shortly after we started working on Tresorit, our fears proved to be real: Edward Snowden revealed how easily global authorities can get access to tons of user data. However, we also knew how easy it is to get access to the data stored online. We saw that the cloud is a convenient way to store and share files. We started Tresorit seven years ago because we couldn’t find a cloud storage service that we trusted. I wanted to know first why did Tresorit choose to differentiate themselves from other cloud storage solutions. In the present, Istvan focuses mostly on the company’s strategy and business decisions. He is a cryptography engineer, computer scientist and entrepreneur. In the beginnings of the project, Istvan wrote parts of Tresorit’s encryption code. What makes the difference and how do these differences impact the cloud user? I spoke to Istvan Lam, co-founder & CEO of Tresorit, the end-to-end encrypted file sync & sharing company. This also means that some cloud services are, privacy-wise, a better option than others. But not all computers are the same – some are more secure than others. Surely a high percentage of this article’s readers already know that in reality there is no magic cloud, instead just other people’s computers. With cloud computing being the sector developing most in the IT industry, close to all Europeans have their data hosted by a cloud storage service. company, the data stays within EU grounds.INTERVIEW. Even though data is stored with Microsoft Azure, Tresorit only uses EU servers. Suffice it to say, the company is doing well in terms of dodging government requests. Tresor names, basic activity data, device name.IP addresses where the user accessed the data from.Billing information: address, last 4 digits of credit card, credit card expiration date.However, what Tresorit can share includes non-content user data such as: Since the data is encrypted, it can’t realistically be viewed by authorities anyway. No requests were made by foreign authorities such as the United States. However, no official decision was made on the case by Swiss authorities, so the data was never handed over. During the period from 2013 to 2017, Tresorit has received one informal request from a Swiss police authority to retain certain user data.

Tresorit cloud storages