[Improvement] System resilience for contacts tracing
ROBERT centralized approach proved one of its limits yesterday.
Activation of contacts tracing require server access. If server access is down (overload, DDOS attack), everything is down.
With a decentralized approach, server is only used for diagnostic and any action can be delayed without major impact. One more time, decentralized approach is more secure. And it's the only problem of this great app.