Windows security that doesn’t stop
Before you even start up, Windows 11 is on guard. Cutting-edge hardware and innovative software work in tandem to help keep your identity, information and apps secure.*
Microsoft Defender Antivirus
A next-generation protection solution that comes with Windows 11, Microsoft Defender Antivirus is real-time, always-on antivirus protection.
Microsoft Defender SmartScreen
If a website, application or download is potentially malicious and could harm your computer, SmartScreen will warn you.
Windows Firewall can help prevent hackers or malicious software from gaining access to your PC through the internet or a network.
Whether you’re using Bluetooth headsets, mice, keyboards or other wireless accessories, you can feel confident that it’s a secure connection.
Windows Wi-Fi supports industry standardised authentication and encryption methods, to help keep you safe no matter where you connect—even on public networks.
Virtual private networks (VPN)
A VPN, or virtual private network, is a secure tunnel connecting your PC and the internet. A variety of VPN apps are available in the Microsoft Store.
Windows Hello is a more personal, more secure way to get instant access to your Windows 11 devices using a PIN, facial recognition or fingerprint.1
Wake on approach and lock on leave
If your PC has a presence detection sensor, Windows 11 can automatically lock your device by using facial recognition when you walk away. It can also unlock your device and sign you back in with Windows Hello when you return.
Microsoft Authenticator App
The Microsoft Authenticator app provides easy, secure sign-ins for all your online accounts using multifactor authentication, passwordless phone sign-in or password autofill.
Find My Device
When enabled, Find My Device can be used to help recover lost or stolen hardware, reducing security threats that rely on physical access to devices.
The Privacy Dashboard is a simple view where you can manage data, export reports, and view which apps are using your camera, mic, and even your location.
In addition to blocking ad trackers and defending against malware, Microsoft Edge can monitor2 the web to check if your passwords have been compromised. It’s the most secure browser on Windows 11.
With OneDrive PC Backup on Windows 11, documents and pictures folders are automatically backed up, giving them a second life—and giving you extra peace of mind.3
Microsoft Family Safety
Microsoft Family Safety4 helps develop healthy digital habits with transparency into your family’s activities. Use content filtering settings to block inappropriate apps and games, and limit browsing to child-friendly websites using Microsoft Edge on Windows, Xbox and Android.
Smart App Control
Smart App Control takes the stress out of downloading and installing apps by only allowing apps predicted to be safe to run on your Windows PC. This security feature is available only on the latest version of Windows 11 in the United States and Western Europe.5
Microsoft 365 Defender App
A Microsoft 365 Personal or Family subscription includes the Microsoft Defender app6, giving you real-time security notifications, expert tips, and recommendations that help protect you from hackers and scammers. It works with multiple devices and comes with identity threat monitoring, which helps you and your family stay safer online.
Modern protection against modern threats
Ever-evolving security threats require top-level security to keep users, identities, data and devices protected. In Windows 11, hardware and software work together to help protect you and your information. Browse Windows 11-equipped devices now.
Our commitment to protect
With thousands of security experts working to hunt down threats, fix vulnerabilities, and stay a step ahead of cybercriminals—we’re doing all we can to help keep you safe.
Something bugging you?
The Microsoft Windows Insider Preview bounty programme invites eligible researchers across the globe to find and submit vulnerabilities. Qualified submissions are eligible for awards from $500 USD to $100,000 USD.
Supporting your security
Windows Security is your home to manage the tools that protect your device and your data. Access Windows Security by going to Start > Settings > Update & Security > Windows Security.