Basic Auth and Exchange Online – February 2020 Update

Hi, 

I have 2 questions:

1) We are using CSOM to connect to SharePoint Online like this:

ClientContext context = new ClientContext(pUrl);

context.Credentials = new SharePointOnlineCredentials(login, securePassword);

The change of Basic Authentication will have any impact on this type of authentication with SharePoint Online?

2) We are sending mail in the backend of an application using c# and the class  SmtpClient. We are using office 365 as the smtp: "smtp.office365.com"

In the Credentials property of the SmtpClient object we are passing a user and pass like this:

new System.Net.NetworkCredential("UserName", "Password ") 

Will we have to change this code after the change of Basic Autentication?

Thanks for your help!