circl<p>TR-94 - Ongoing Phishing Campaigns Targeting Microsoft 365 Tenants Lacking Multi-Factor Authentication</p><p>We observed more than 48 organisations in Luxembourg with M365 account compromised in the past 7 days starting from 21st May 2025.</p><p>🔗 <a href="https://www.circl.lu/pub/tr-94/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">circl.lu/pub/tr-94/</span><span class="invisible"></span></a></p><p><a href="https://social.circl.lu/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cybersecurity</span></a> <a href="https://social.circl.lu/tags/office365" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>office365</span></a> <a href="https://social.circl.lu/tags/incident" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>incident</span></a> <a href="https://social.circl.lu/tags/phishing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>phishing</span></a> <a href="https://social.circl.lu/tags/luxembourg" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>luxembourg</span></a></p>