That link explains that this is just a protocol update not a security thing. (confusing word choice imo)

> We call an event like this a 'breach' since we breach the continuity of Urbit's network protocol. This isn't a security incident.

Ummm....

edit: judging by the number of replies like this one, clearly has a high CTR. Might not be as bad a choice as I thought.

"Unlike past breaches, this one comes with a tool to export and reimport all of your data so that you don't lose anything;"