Microsoft warns of a new zero-day vulnerability that leaves Exchange open to hackers.
On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow ...
A newly discovered zero-day vulnerability in Microsoft Exchange Server has experts declaring an emergency and urging CSOs to ...
Microsoft is developing cross-tenant email recall for Outlook, allowing users to recall emails sent outside their organization.
Microsoft warned Exchange Server customers about critical OWA vulnerability CVE-2026-42897 affecting on-premises deployments.
Microsoft on Thursday disclosed a zero-day vulnerability in Exchange that's under active exploitation, but four days later customers are still awaiting a patch. The zero-day, tracked as CVE-2026-42897 ...
Microsoft Outlook users reported problems signing in to the email client at the start of the week, with reports beginning just before 5 a.m. ET Monday. After several hours of login issues, a fix has ...
A major Microsoft Outlook outage is occuring - here's all the updates.
Microsoft is investigating an ongoing Exchange Online issue that mistakenly flags legitimate emails as phishing and quarantines them. The incident began on February 5 and continues to affect Exchange ...
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