Microsoft Security | Microsoft Defender | Other
Additional Microsoft Defender tools and services that provide security across various platforms and environments
defender login fails.
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David Hill
0
Reputation points
defender login fails. i go through login verification and at the end of process it ask do i want to stay logged in. at that point it fails and goes back to login screen again. I have completed this process several times but get same results each time.
Microsoft Security | Microsoft Defender | Other
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Bence Weiszmann 1,560 Reputation points2026-08-23T20:14:02.2933333+00:00 Dear @David Hill
Could you clarify where exactly you are trying to sign in to Microsoft Defender? For example, are you accessing the Microsoft Defender portal (security.microsoft.com), or a specific Defender service/application?
This would help narrow down where the authentication loop is occurring.
Thanks,
Bence
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