The Carrington Event: not something to worry about
One of the things that is widely regarded as a menace that might destroy civilization, or at least be enormously damaging, is a repeat of the "Carrington Event", the September 1859 geomagnetic storm. Back then there was hardly any electrical infrastructure, but there are stories of telegraph offices catching on fire and telegraph operators experiencing electric shocks. Now, it is said, with all our electronics, we'd be devastated. Even NASA has gotten into the act, forecasting trillions of dollars in damage from a repeat of such an event, and talking about it "disabling everything that plugs into a wall socket". But taking a hard look at the mechanism for such harm, really the danger is quite small.