It’s always been easy to create a sharable link for your albums, but it wasn’t possible to prevent others from resharing that link. Now Photos offers more control:
Last December, we launched direct sharing to make it easy to share one-off photos and videos in Google Photos by adding them to an ongoing, private conversation in the app. Today, we’re bringing a similar experience to shared albums. Rolling out this week, when sharing an album, the default option will be to share with a specific person or people via their Google account. This gives you more control over who’s added to the album.