Hot answers tagged security
Deny All - Anonymous users cannot have any access, even if site administrators specifically attempt to grant the anonymous user account access to their sites. For more information about it, see Manage permission policies for a web application in SharePoint 2013 and also Overview of security groups in SharePoint 2013
This simply isn't supported. SharePoint needs to be able to make those calls as well, e.g. PowerPivot (call is translated from NT AUTHORITY\ANONYMOUS to the target caller). You will just need to communicate this to your security folks.
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