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Microsoft Defender
Get ahead of threat actors with integrated security solutions.
Introducing the new unified XDR and SIEM
portal
Get comprehensive features, automation, guided experiences, and threat intelligence with
Microsoft Sentinel and Microsoft Defender XDR, which combine extended detection and
response (XDR) and security information and event management (SIEM) capabilities to
deliver a unified security operations platform.
Learn more
Overview
Products
Blogs and events
Defend against malicious cyberthreats
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.
For enterprise
Prevent, detect, and respond to attacks across
devices, identities, apps, email, data, workloads, and
clouds.
For business
Get enterprise-grade endpoint protection that’s
cost-effective and easy to use—and designed
especially for small-to-medium businesses.
For individuals
Seamlessly protect your personal data, computers,
and phones against malicious threats with a
simplified app for you and your family.
Explore Microsoft Defender products for enterprises
Microsoft Defender XDR (formerly
Microsoft 365 Defender)
Get unrivaled threat intelligence and automated attack disruption of the most
sophisticated attacks with a unified extended detection and response (XDR)
solution.
Learn more
Microsoft Defender for Cloud
Find weak spots across your cloud configuration, strengthen the overall security
posture of your environment, and protect workloads across multicloud and hybrid
environments from evolving threats with XDR capabilities.
Learn more
Microsoft Defender for Business
Increase security with enterprise-grade endpoint protection for small and medium-
sized businesses that's cost effective and easy to use.
Learn more
Microsoft Defender for individuals
Get online security protection for individuals and families with one easy-to-use
app.
1
Learn more
Blog posts and events
Webinar
The Defender's Watch
Join host Rob Lefferts in Episode 2
of this webinar series to learn how
to prepare for evolving identity-
based threats.
Watch the episode
Blog
Introducing Microsoft
Defender for
individuals
See how Microsoft Defender for
individuals is making the world a
safer place.
Read the blog
Report
Microsoft Digital
Defense Report
Defend your organization using
deep threat analysis and the latest
security intelligence and strategies.
Get the report
Website
The Security Insider
Dig into the latest cybersecurity
research and learn strategies to
defend yourself from emerging
threats.
Go to the site
Protect everything
Make your future more secure. Explore your security options today.
[1] App is available on Windows, macOS, Android™, and iOS in select Microsoft 365 Family or Personal billing regions.
Follow Microsoft Security
Skip
Microsoft Security
Microsoft Defender
Get ahead of threat actors with integrated
security solutions.
Introducing the new unified XDR and
SIEM portal
Get comprehensive features, automation, guided
experiences, and threat intelligence with Microsoft
Sentinel and Microsoft Defender XDR, which
combine extended detection and response (XDR)
and security information and event management
(SIEM) capabilities to deliver a unified security
operations platform.
Learn more
Defend against malicious
cyberthreats
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.
For enterprise
Prevent, detect, and respond to attacks across
devices, identities, apps, email, data, workloads,
and clouds.
For business
Get enterprise-grade endpoint protection that’s
cost-effective and easy to use—and designed
especially for small-to-medium businesses.
For individuals
Seamlessly protect your personal data,
computers, and phones against malicious
threats with a simplified app for you and your
family.
Explore Microsoft Defender
products for enterprises
Microsoft Defender XDR
(formerly Microsoft 365
Defender)
Get unrivaled threat intelligence and
automated attack disruption of the most
sophisticated attacks with a unified extended
detection and response (XDR) solution.
Learn more
Microsoft Defender for
Cloud
Find weak spots across your cloud
configuration, strengthen the overall security
posture of your environment, and protect
workloads across multicloud and hybrid
environments from evolving threats with
XDR capabilities.
Learn more
Microsoft Defender for
Business
Increase security with enterprise-grade
endpoint protection for small and medium-
sized businesses that's cost effective and
easy to use.
Learn more
Microsoft Defender for
individuals
Get online security protection for individuals
and families with one easy-to-use app.
1
Learn more
Blog posts and events
Webinar
The Defender's Watch
Join host Rob Lefferts in Episode 2 of this
webinar series to learn how to prepare for
evolving identity-based threats.
Watch the episode
Blog
Introducing Microsoft Defender for
individuals
See how Microsoft Defender for individuals
is making the world a safer place.
Read the blog
Report
Microsoft Digital Defense Report
Defend your organization using deep threat
analysis and the latest security intelligence
and strategies.
Get the report
Website
The Security Insider
Dig into the latest cybersecurity research and
learn strategies to defend yourself from
emerging threats.
Go to the site
Protect everything
Make your future more secure. Explore your
security options today.
[1] App is available on Windows, macOS, Android™,
and iOS in
select Microsoft 365 Family or Personal
billing regions
.
Follow Microsoft Security
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Blogs and events
What's new
Surface Pro
Surface Laptop
Surface Laptop Studio 2
Surface Laptop Go 3
Microsoft Copilot
AI in Windows
Explore Microsoft products
Windows 11 apps
Microsoft Store
Account profile
Download Center
Microsoft Store Support
Returns
Order tracking
Microsoft Experience Centre
Recycling
Microsoft Store Promise
Education
Microsoft in education
Devices for education
Microsoft Teams for Education
Microsoft 365 Education
Office Education
Educator training and development
Deals for students and parents
Azure for students
Business
Microsoft Cloud
Microsoft Security
Azure
Dynamics 365
Microsoft 365
Microsoft 365 Copilot
Microsoft Teams
Small Business
Developer & IT
Microsoft Developer
Documentation
Microsoft Learn
Microsoft Tech Community
Azure Marketplace
AppSource
Microsoft Power Platform
Visual Studio
Company
Careers
About Microsoft
Company news
Privacy at Microsoft
Investors
Sustainability
English (United Kingdom)
Your Privacy Choices
Consumer Health Privacy
Contact Microsoft
Privacy
Manage cookies
Terms of use
Trademarks
About our ads
EU Compliance DoCs
Regulatory reporting
© Microsoft 2025