Making your snapshot public shares all snapshot data with everyone. Can the snapshots with AWS
Marketplace product codes be made public?

A.
No

B.
Yes

Explanation:
“Making your snapshot public shares all snapshot data with everyone; however, snapshots with AWS
Marketplace product codes cannot be made public. Encrypted snapshots cannot be shared between accounts
or made public.” http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-modifying-snapshotpermissions.html
“This is not a valid option for encrypted snapshots or snapshots with AWS Marketplace product codes.”