My customer's administrator recently died and now my customer has no login data, neither for the backend of his content-management-system nor the administration system of his provider. He only has an FTP-Login left.
Via hostadvice.com I found out that his website is hosted on Google Cloud Platform.
Is there a way to retrieve the login data when both the login and the password are missing?
What can I do or what must my customer do to get the control of his webspace back?