Provides a link to Microsoft Security Advisory: Incorrectly issued digital certificates could allow spoofing.

If the user does not hold the necessary permissions, the change notifications will be filtered out, preventing unauthorized disclosure of file paths. By default, this fix is disabled to prevent any unexpected security risks or application disruption.

Before the May 10, 2022, security update, certificate-based authentication would not account for a dollar sign ($) at the end of a machine name. This allowed related certificates to be emulated (spoofed) in various ways.

Learn about the terminology that Microsoft uses to describe software updates. Describes the cumulative update for Windows Embedded Compact 2013 that's dated October 2015.

If you want to insert a digital signature into an email, you need to install a digital ID (certificate), which is verified by a third party. Before you can send and receive messages with encryption or digital signatures, or digital IDs, please follow the instructions to set up encryption in Outlook.

This document describes support for deploying, managing, and monitoring the Secure Boot certificate updates using Windows registry keys. The keys consist of the following:

This article describes an update that enables urgent updates for the Windows Root Certificate Program in Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows 8, Windows RT, Windows Server 2012, Windows 7, and Windows Server 2008 R2.

Once these 2011 certificates expire, security updates for boot components will no longer be possible, compromising boot security and putting affected Windows devices at risk and out of security compliance.

If you do not want to purchase a digital certificate from a third-party certificate authority (CA), or if you want to digitally sign your document immediately, you can create your own digital certificate.

For general information on adding or removing protection from files, such as passwords, restricted editing, and digital signatures, see Add or remove protection in your document, workbook, or presentation.