2871997 – Update to Improve Credentials Protection and Management – Version: 5.0

Revision Note: V5.0 (February 9, 2016): Rereleased advisory to announce the release of update 3126593 to enable the Restricted Admin mode for Credential Security Support Provider (CredSSP) by default. See Updates Related to this Advisory for details.
Summary: Microsoft is announcing the availability of updates for supported editions of Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, Windows RT, Windows 8.1, Windows Server 2012 R2, and Windows RT 8.1 that improve credential protection and domain authentication controls to reduce credential theft.
Source: ms-security