Analysis of SSO permissions requested across websites

Overall, we assessed a total of 6,322 websites, including the top 5K Tranco sites and the websites corresponding to the Android apps.


Distribution of Facebook SSO permissions on websites
Bars show the number of requested Facebook SSO permissions by websites. As shown, the top three most common permissions for Facebook are: "Birthday", "Gender", and "Current City".

Distribution of Google SSO permissions on websites
Bars show the number of Google SSO permissions by websites. As shown, the top three most common permissions for Google are: "Exact date of birth", "Contacts", and "Age group". The labels in parentheses indicate whether the permission involves read (R) and/or write (W) access.