Unsecure cloud storage services either don’t encrypt your data on their servers, or they store the encryption keys or your password on their servers. This is usually referred as at-rest encryption, which is misleading for the end-user, because users might think it is a sufficient encryption method.
Since hackers are more likely to attack the core of a service rather than individual users, this means that if they get in, everyone’s data is exposed.
Non-encrypted storage reduce costs, and allows for searching, indexing, and data mining. For example, cloud services can save space by storing duplicate files just once, even if those files belong to completely unrelated users.
Their costs and convenience comes before your security.
By using Tresorit, your files remain encrypted, so no one, not even Tresorit staff, is able to decrypt your files to see, steal, or modify them.
Naturally, we take our core security very seriously, but even if it were to fail, your data would still be safe since all anyone can see on the servers is random bits of data.
We also free ourselves from the hassle, and you from the risk, of local government entities requesting access to your data. We simply have no possible way to open our clients data for government examination.
At Tresorit, your security comes first.