Microsoft Defender continues its relatively poor run in the AV-Comparatives anti-malware protection assessment per the latest May rankings. There was one category though where it did really well.
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In the latest performance impact test from AV-Comparatives, Microsoft's Defender has been one of worst performers of all, barely coming in second-last among 17 anti-malware products.
AV-Comparatives has released its latest March 2022 anti-virus program assessment report which shows that Microsoft Defender has really poor offline detection rate. Aside from that, it has done well.
Microsoft Defender scored highly in some of the latest AV-TEST rankings, the latest one being from December. However, it hasn't quite done as well in AV-Comparatives' testing though.