INTRODUCTION
Microsoft works to help make computing as secure as possible for our customers. As part of this effort, Microsoft Windows Defender regularly downloads updates to the definition files that are used to identify spyware and other potentially unwanted software. Windows Defender may also periodically download detection engine updates. Microsoft delivers these updates by using Microsoft Windows Update, Automatic Updates, and Windows Server Update Service (WSUS).
Important: The National Public Data breach exposed personal information, including names, addresses, and social security numbers. Learn how to protect yourself and how Microsoft Defender is helping to prevent fraud. See: National Public Data breach: What you need to know.
More Information
For more information about Windows Defender, visit the following Web site:
http://www.microsoft.com/athome/security/computer/default.mspx
