Microsoft Defender is an online security app for your digital life1 and work2. Use Microsoft Defender for individuals1 at home and on the go to stay safer online. Simplify your online security with one easy-to-use app that helps keep you and your family one step ahead of threats. Microsoft Defender for individuals is available exclusively with a Microsoft 365 Personal or Family subscription. All-in-one security app Seamlessly protect your data and devices3 against malicious threats with continu