Do we have backup plan if this list disappears?

[Georgi Guninski]

Do we have backup plan if this list disappears?

Two public security lists I have been on degraded to the point I
unsubscribed (on the second they filtered me at SMTP).

Generalization:

Do we have backup plan if the interwebz lose a lot of connectivity?
(maybe some kind of radio communications).

Probably revealing the plans to adversaries is not good idea, not
sure.