Disk utility will not encrypt my disk
I have done this dozens of times with disk utility. I do the same format I have successfully used dozens of times. It follows all the way through the encryption process, creating a password, then allowing me to put documents into my image. However, when I click on the disk name I gave it, it comes up without first asking me for the password. Here is the format I THINK I have been using all along. Grateful for any help.
Name: "Scoobedoo File"
Size: 100 MB (plenty of memory)
Encryption: 128
Partitions: Single Partition - Apple Partition Map
Image Format: Read/Write disk image.
MacBook Air 11" Mid 2013.-OTHER, OS X Mavericks (10.9.5)