Microsoft says an Exchange Online issue that mistakenly quarantined legitimate emails last week was triggered by faulty heuristic detection rules designed to block credential phishing campaigns.
Microsoft has confirmed that a faulty anti-phishing detection rule designed to stop credential theft campaigns mistakenly ...
Microsoft confirms Exchange Online and Teams messages were mistakenly quarantined due to a phishing detection bug (EX1227432).
Microsoft 365 Copilot bug let AI summarize confidential emails despite DLP rules. What it means for your data and safety.
Microsoft Exchange Online has been quarantining legitimate business emails since 5 February. Invoices, contracts, and client messages may have vanished with no warning or fix in sight.
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