If I have Microsoft Security Essentials do I still need Windows Defender?
Microsoft Security Essentials is a free download for home computers running on the Windows operating system.
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Explore recent cybersecurity news—including evolving threats, industry trends, product releases, and Microsoft initiatives.
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Prevent threats with Microsoft Defender
The Microsoft Defender family offers comprehensive threat prevention, detection, and response capabilities for everyone—from individuals looking to protect their family to the world’s largest enterprises.
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What is Windows CardSpace?
These days our online lives look a lot like our offline lives. -
Internet Explorer 8: Stay safer online
Want to learn how the latest Web browser from Microsoft offers increased protection against phishing, malware, and other online threats? Internet Explorer 8 provides you and your family with a safer online experience with features like the SmartScreen filter. -
President of France not immune to online theft
According to the Associated Press, French police said that in October of this year they arrested two men for breaking into the personal bank account of French President Nicolas Sarkozy. Retain Microsoft Security Experts
Microsoft Security Experts are now available to strengthen your team with managed security services. Learn how to defend against threats with security experts.
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Free Microsoft antispyware site helps you protect your computer
Microsoft just launched a new Windows Defender Web site dedicated to helping you fight spyware. -
What is a Windows Live ID?
A Windows Live ID is your e-mail address and a password that you choose. -
Is it safe to install ActiveX controls on my computer?
A lot of you have recently asked us about ActiveX controls. -
STRIDE chart
There are good reasons to optimize for different points on that spectrum (of better/faster/cheaper) at different times in different products. Modernize your Security Operations Center with Microsoft Sentinel
Microsoft Sentinel is a cloud-native SIEM solution powered by AI and automation that delivers intelligent security analytics across your entire enterprise.
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How to tell if Windows Defender is installed on your computer
Windows Defender is an antispyware program from Microsoft that helps protect you from spyware, pop-up windows, and other unwanted software. -
Windows Defender for Windows Vista
Some of you have been asking about whether or not you should download Windows Defender. -
What is a cookie?
Cookies are small files that Web sites put on your computer hard disk drive when you first visit. -
The Importance of the “Evaluated Configuration” in Common Criteria Evaluations
How many of you have heard of the Common Criteria ? If you’ve ever done security work with government, you probably have.
