I just found a hidden partition "EspionageMounts" on my hard disk - obviously a leftover from trying Espionage 3.
How do I get rid of this partition?
Hello, I believe what you see is a folder under /Volumes, not a partition. Espionage does not partition the disk, it just creates the folder you mention as a mount point for the disk images it mounts when you unlock the folder.
If you do not want to use Espionage, simply delete the folder.
Let me know if you have further questions.
Rgds
Zsolt