I tried to download the extension and SDK from the links in this article https://learn.microsoft.com/en-us/gaming/playfab/sdks/unity3d/installing-unity3d-sdk and from the GitHub, but Windows Defender nukes the files after download saying it contains Trojan:Win32/MalUri.A!cl
We cannot reproduce the issue. If you download Unity extension and SDK from official PlayFab GitHub, this issue may be a false positive from Windows Defender and you could submit a false positive report to Microsoft. As a workaround, you could start by changing Windows Defender's settings so that it doesn't automatically delete the Unity extension and SDK files when it detects a threat. Then you can add the download Unity extension and SDK to Windows Defender's whitelist. In addition, you could also trying change a device and download the SDK from https://github.com/PlayFab/UnitySDK to see if the issue persists.
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