I bought Boxcryptor so that I would be able to take photos on my phone, encrypt them and upload them to my cloud storage.
Although I am able to do this, these encrypted photos can be viewed without decryption when I open the Boxcryptor app. So if someone gains access to the app on my phone, they can view the images (all they would need is access to my phone for the 2 factor authentication and the four digit PIN for the app). I need to make it so that my encrypted files cannot be easily viewed through the app in this way. How can I do this?