If you’re not present when delivery is attempted, your parcel may be safe dropped depending on the postal/courier service. This means the postie has determined there was a safe spot at your property to deliver your parcel.
If you’re concerned about this, we recommend having your parcel shipped to a safe address where someone is likely to be home at the time of delivery.
If you’re in Australia, you may also like to consider an Australia Post parcel locker, which is a convenient (and free!) service that helps keep your shiny parcels safe. You can read more about this here.