RJ Hamster
Microsoft
Activate your Defender to stay protected across your devices
Spring forward with always-on, professional-grade protection from Microsoft Defender¹ for your devices.²Continue to sign in
Online security, simplified
Manage security in one place
Bring order to your digital security. Manage alerts and device statuses from a single, easy‑to‑use app.Open Defender ❯
Monitor your identity online
Sweep out hidden risks. Defender alerts you to identity3 threats, dark web activity, and suspicious credit4 changes.Go to identity theft monitoring ❯
Protection across your devices
Clean out digital threats like viruses, phishing attempts, and malware on your phones and computers.2Download Defender ❯
1 Microsoft 365 Personal, Family, or Premium subscription required.
2 Available on Windows, Mac, iOS, and Android devices. Does not replace existing malware protection on iOS and Windows devices.
3 Available in the United States and US territories.
4 The device’s primary display language must be set to English.
App availability varies by device/language. Features vary by platform. Learn more.
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