Tresorit is an easy-to-use, cloud-based, secure file synchronizing software designed to share confidential data. Simply turn any folder to a Tresor and place a file into it and they will automatically sync with every computers connected to the same account. At encryption is performed before the data gets uploaded to the cloud, therefore users do not require to trust the cloud provider nor the communication links. Decryption is only possible with permission from the owner Encrypted contents can be shared without re-encryption.