Open SEF File

SEF extension files are mainly used for the Steganos encryption format. This format was created by Steganos GmbH. These files that use the SEF extension are encrypted files and are created by Steganos Privacy Suite software.

The Steganos suite provides password creation and protection services for files, confidential documents, photos, videos on the computer, as well as online accounts, in the cloud, emails, etc.

The software uses a state-of-the-art 384-bit AES-XEX encryption with AES-NI Hardware acceleration protocol, and the stub files have the SEF extension.

SEF files, because they are classified as encrypted, cannot be opened by software other than the one that created them, which in this case is Steganos Privacy Suite.