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Zero-day tool blocks Microsoft Defender updates

BigDiskBuster, a zero-day tool published on GitHub, prevents Microsoft Defender from updating.

Published 7sem1 sourceNotable
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≈ 14s

The fact

It fills disk space to block signature updates.

Its author, Abdelhamid Naceri, did not provide a patch.

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Auto-synthesis from 1 media source · identified on September 22, 2026
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