Their privacy policy is terrifying. They can access anything on a Samsung device.
Some highlights:
When you purchase a Samsung product, create a Samsung Account or register for or use a Service, you may provide us with personal information such as:
-information you store on your device, such as photos, contacts, text logs, touch interactions, settings and calendar information
-recordings of your voice when you use voice commands to control a Service or contact our Customer Service team
-location data, including (1) the precise geolocation of your device if you consent to the collection of this data and (2) information about nearby Wi-Fi access points and cell towers that may be transmitted to us when you use certain Services.
https://www.samsung.com/us/account/privacy-policy/