Verify the Whonix images
It is important to check the integrity of the downloaded virtual machine images to ensure that neither a man-in-the-middle attack or file corruption occurred (see Download Security).
|Warning: Do not continue if verification fails! This risks using infected or erroneous files! The whole point of verification is to confirm file integrity.|
Whonix virtual machine images are cryptographically signed by Whonix developer Patrick Schleizer using OpenPGP. 
Otherwise, use the following instructions: