Bleepingcomputer Microsoft Teams Enhances Security with External User Blocking Feature
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Microsoft is introducing a new feature that allows security administrators to block external users from sending messages, calls, or meeting invitations in Microsoft Teams. This feature will integrate with Microsoft Defender for Office 365 and will be available starting in early January 2026, enabling management through the Tenant Allow/Block List in the Defender portal.
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CVE-2015-3306 Exploited in ProFTPD FTP Servers CVE-2015-3306, a vulnerability in ProFTPD 1.3.5, allows remote attackers to read and write arbitrary files using the SITE CPFR and SITE CPTO commands. This exploit can lead to unauthorized access and potential remote code execution, as the commands are executed with the privileges of the ProFTPD service. Active… 
CISA Mandates Urgent Patching of Five Critical Flaws Exploited by Flax Typhoon The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to patch five critical vulnerabilities by October 11, 2026, following exploitation by the China-linked hacking group Flax Typhoon. The vulnerabilities, added to CISA's Known Exploited Vulnerabilities (KEV) catalog, include…