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Passwordless Microsoft Exchange exploit reportedly exposes 22,000 servers

A Microsoft Exchange exploit reportedly requires no password and may expose 22,000 servers. Extended security support is also set to end in October.

By DoomRadar · Published on DoomRadar .

Why it matters

Mass exploitation could disrupt organizations and compromise communications and data worldwide.

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  1. Microsoft Exchange Exploit Requires No Password: 22,000 Servers Exposed, ESU Ends October ↗techtimes.com · Recorded source date: Sep 2, 2026, 5:01 PM UTC

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