Obviously, you have full access to your test results, but you can also share them with whoever you want. Only people with the URL provided by you can see them. You can share heatmaps and recordings.
Once you are on the heatmaps (or recordings) panel, click the Share button in the top right corner and a window with sharing options will open. You can copy the given URL and send it further or share it by using one of the sharing buttons below (email, Facebook, Twitter or LinkedIn).
Once a person receives this URL from you, he/she can see heatmaps for all items and modify the view (choosing from the menu above the heatmaps), choose testers (from the menu on the left, this is also available for the recordings), filter results, or make his/her own AOI.
Please remember that to share both, heatmaps and recordings, you need to share 2 links (having a link to study recordings doesn't allow to see heatmaps and vice versa).
It is not possible to share data charts or quality statistics.