Matrix server
If you need a tool to communicate in your team effectively, different tools exists.
However the most popular tools are either not free (for example slack) or not safe (for example discord). At EPFL, a matrix server is available for team communcation. This server is safe, free and respecting EPFL guidelines in terms of secrecy (data are stored in Switzerland - on EPFL campus - and are properly encrypted). Matrix is using clients (similar to emails). We strongly advise interdisciplinary projects to use this tool for their team communication.
With the MAKE team we are still using slack but we are planning to transit to matrix in the future for a safer forum workspace.
Useful links
Free access