Microsoft Defender Antivirus (formerly Windows Defender) is an antivirus software component of Microsoft Windows. It was first released as a downloadable free anti-spyware program for Windows XP and was shipped with Windows Vista and Windows 7. It has evolved into a full antivirus program, replacing Microsoft Security Essentials in Windows 8 or later versions.[3]
In March 2019, Microsoft announced Microsoft Defender ATP for Mac for business customers to protect their Mac[4] devices from attacks on a corporate network, and a year later, to expand protection for mobile devices, it announced Microsoft Defender ATP for Android[5] and iOS[6] devices, which incorporates Microsoft SmartScreen, a firewall, and malware scanning. The mobile version of Microsoft Defender also includes a feature to block access to corporate data if it detects a malicious app is installed.
^"KB4052623". catalog.update.microsoft.com. Retrieved 14 February 2022.
^ ab"Minimum requirements for Microsoft Defender for Endpoint". Microsoft Learn. Microsoft. 23 December 2022.
^Cite error: The named reference digitalcit was invoked but never defined (see the help page).
^"Announcing Microsoft Defender ATP for Mac". TECHCOMMUNITY.MICROSOFT.COM. 2019-03-21. Retrieved 2021-03-07.
^"Announcing Microsoft Defender ATP for Android". TECHCOMMUNITY.MICROSOFT.COM. 2020-06-23. Retrieved 2021-03-07.
^"Microsoft Defender for Endpoint on iOS is generally available". TECHCOMMUNITY.MICROSOFT.COM. 2020-12-07. Retrieved 2021-03-07.
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