This guide provides network engineers and defenders of communications infrastructure with best practices to strengthen their visibility and harden their network devices against successful exploitation carried out by PRC-affiliated and other malicious cyber actors.| Cybersecurity and Infrastructure Security Agency CISA
A collaboration tool with end-to-end encryption and enterprise functionality including auditing for compliance. Element is an enterprise-grade communications platform based on Matrix. Element is designed for use in government, public sector and enterprises.| element.io
Tchap is the French government's digital sovereign secure messaging and collaboration app. It is a Matrix-based, on-premise messenger and collaboration platform. The group messenger and collaboration tool supports more than 300,000 users across the French civil service.| element.io