Forum Discussion
File Sharing between licensed account holders
From a starting point of this year, we have been finding that any to most file shares that happened between licensed MS account users are being flagged and quarantined by the anti-malware policy. Thi...
Hi,
You can start by checking the exact quarantine reason in Microsoft Defender (Malware, Phishing, Safe Attachments, etc.).
Based on your description, it's difficult to determine whether this is an Anti-Malware issue, a Safe Attachments verdict, or another Defender policy.
Has anything changed recently in your Defender policies or security configuration?
The quarantine verdict should provide the first clue to identifying the root cause.