Disable block public access for Amazon EBS snapshots
Disable block public access for snapshots to allow public sharing of snapshots in the Region. After this feature is disabled, users can publicly share snapshots in the Region.
Important
Enabling block public access for snapshots in block all sharing mode does not change the permissions for snapshots that are already publicly shared. Instead, it prevents these snapshots from be publicly visible and publicly accessible. Therefore, the attributes for these snapshots still indicate that they are publicly shared, even though they are not publicly available.
If disable block public access, these snapshots will become publicly available again.