Microsoft warns of a new zero-day vulnerability that leaves Exchange open to hackers.

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On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow ...

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A newly discovered zero-day vulnerability in Microsoft Exchange Server has experts declaring an emergency and urging CSOs to ...

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Microsoft Exchange users are urged to mitigate a zero-day vulnerability that CISA has confirmed is under active exploitation.

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Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come ...

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