It seems like it could take only a moment to ruin most countries.

Yonhap News
Hackers raised super refrigerator temperatures to 50 degrees Celsius...
Hundreds of stores in France affected
Even Carrefour reported 80 stores were hit.
It seems like most countries could face an instant shutdown
if their power grids are attacked.
This could bring results even more terrifying than nuclear weapons.
It is not just an imagination; we will likely see it become a reality soon.