Important: Identity theft monitoring is currently only available to customers in the United States. To learn more about anti-malware see Getting started with anti-malware in Microsoft Defender. On Windows, Mac, and Android Microsoft Defender can check files or apps you download and install, as well as run scans of files already on your system to spot any malware that may threaten your device. It may also track or spy on you, steal your money, or use your device to cause other mischief like attacking other people.

Malware is malicious soft ware which can steal or damage your personal data such as files, photos, or messages. Windows Defender Firewall is on by default. Windows Defender Firewall is firewall software built into Windows that controls which network traffic is allowed, or blocked, from passing to or from your computer across the network. It includes Microsoft Defender Antivirus, an antivirus tool that helps protect you against viruses, ransomware, and other malware.įor more information, see Stay protected with Windows Security. Windows Security, formerly known as Windows Defender Security Center, is an app built into Windows 10 or 11 that helps keep your PC more secure. Microsoft Defender is included in a Microsoft 365 Family or Personal subscription and works on your phone (Android or iOS), PC, and Mac. Microsoft Defender is a security app that helps people and families stay safer online with malware protection, web protection, real-time security notifications, and security tips.

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