Legacy TLS cipher suites will be deprecated in M365 services on October 20, 2025 [MC1155427]

Legacy TLS cipher suites will be deprecated in M365 services on October 20, 2025 [MC1155427]

Message ID: MC1155427 [Introduction] To strengthen encryption standards and uphold customer trust, Microsoft is deprecating support for legacy TLS cipher suites that do not offer forward secrecy. This change aligns with our ongoing commitment to security and data protection across…
Microsoft Teams: Private channels increased limits and transition to group compliance [MC1134737]

Microsoft Teams: Private channels increased limits and transition to group compliance [MC1134737]

Message ID: MC1134737 (Updated) Updated September 18, 2025: We have updated the timing and content below with additional information. Thank you for your patience. In response to customer feedback, we are introducing enhanced flexibility, greater scalability, and streamlined compliance management…