Get multi-device protection for you and your family. Protect your phones and computers against new and existing threats with continuous antivirus and phishing scans2. Get alerted if malicious apps are found, plus steps to uninstall and remove the threats. Receive device notifications when there’s a security risk. Specify regularly used apps and files you don’t want Defender to scan.
Take control of your family's security with device threat notifications, no matter where you are. Stay up to date on the security status of your phones and computers with timely security notifications and guidance.
WHY DEFENDER?
Online security, simplified
Stay ahead of online threats
Get one centralized view to easily manage and monitor the security status of your and your family’s computers and phones.
Safeguard your devices
Get trusted antivirus computer and phone protection2 for you and your family.
Stay ahead of hackers and scammers
Get real-time alerts with recommended actions plus security tips about how to stay safer online.
Get more with Microsoft 365
With Microsoft 365 you get Defender, 1 TB of cloud storage, and productivity apps you know and love in one plan.1
DOWNLOAD THE APP
Microsoft 365 subscribers can get started now
Sign in with your Microsoft 365 Personal or Family subscription or purchase a subscription in the app1.
Windows
View the security status of your phones and MacOS computers and receive real-time security alerts on Windows.
Android
Get added protections on your phone including antivirus and anti-phishing.
iOS
Get the added protection of anti-phishing on your phone.
MacOS
Get the added protection of antivirus on your Mac.
Web Portal
View your phone and computer protections, monitor threats, and security tips and recommendations in the web portal.
Get the Microsoft Defender mobile app
Download today for iOS or Android using the QR code below.
If you're having trouble with the QR code, using your mobile device, go to aka.ms/defendermobiledownload to get the Defender mobile app.
Get the Microsoft Defender mobile app
Download today for iOS or Android, click the download app button below.
Microsoft Defender is a multidevice security app1 that helps individuals and families protect their personal data and devices. Stay safer online with malware protection2 and timely cross-device security alerts. Available where Microsoft 365 Personal and Family are sold with a few exceptions.
Windows: Windows 10 version 19041 or higher. ARM64 support on Windows 11 build 22621 or higher
Mac: MacOS 11.0 and up, and both Intel and Apple Silicon CPU. Disk space required: 2 GB
iPhone: iOS 14.0 or later
Android: Android OS 8.0 and up
Microsoft Defenderfor individuals is a cross-device app that helps individuals and families stay safer online.1
Windows Security (formerly known as Windows Defender Security Center) is security built into Windows to help protect your device and data.
No, there are different protections across operating systems. Defender on Windows enables you to view your phone computer protections and receive real-time alerts about those protections. Antivirus and anti-phishing are provided by Windows Security. Defender on MacOS includes antivirus protection. Defender on Android includes antivirus and anti-phishing. Defender on iOS includes anti-phishing protection.
Yes. Because our priority is to ensure your device has protection, the Microsoft Defender app1 works with built-in Windows Security or your third-party antivirus solution—rather than replaces it. You can view your antivirus protection within your Defender dashboard.
Check out Microsoft Support for help getting started, or go to the Help and Feedback menu in the Microsoft Defender app. We encourage you to share feedback in the app by going to the Help and Feedback menu in the Microsoft Defender app. To find Help and Feedback:
From within Windows, select the button near the top right of the window
On your Android or iOS device, tap your account avatar at the top left of the screen.
Get Started
Download the Defender app
New to Defender? Download and purchase a Microsoft 365 subscription1 in the app.
Get Defender for Business, enterprise-grade endpoint security, as a standalone solution or as part of Microsoft 365 Business Premium, our comprehensive security and productivity suite.
Copilot features in Outlook apply to accounts with @outlook.com, @hotmail.com, @live.com, or @msn.com email addresses and are available in Outlook.com, Outlook built into Windows, Outlook on Mac, and iOS and Android apps.
