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

What happened: Ukraine and Russia reported cyber-hacks on their mobile air-raid warning apps overnight. Ukraine's app sent fake alerts, and Russia's app was taken offline after a claimed hack by a Ukrainian hacker group. Why it matters: The breach directly immobilized a key channel authorities use to advise citizens. Ukraine's Air Force urged calm and told people to disregard the fake messages.

Ukraine and Russia reported cyber-hacks on their mobile air-raid warning apps overnight. Ukraine's app sent fake alerts, and Russia's app was taken offline after a claimed hack by a Ukrainian hacker group.

The breach directly immobilized a key channel authorities use to advise citizens. Ukraine's Air Force urged calm and told people to disregard the fake messages.