Ukraine and Russia say air-raid warning systems were hit by cyber-attacks

Both Ukraine and Russia reportedly say their emergency air-raid warning systems were hit by hacks. In Ukraine, an app reportedly sent alarming fake messages late Sunday night. Only one source so far.

Timeline

1. 2 Nov, 08:59 UTCGuardian live blog reports warning system hacks

Top sources

• Ukraine and Russia say emergency air-raid warning systems hit by cyber-hacks – Europe liveThe Guardian