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 investigates classic Outlook bug that makes the mouse pointer disappear, with temporary fixes available for affected users.
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