The power will cease to flow
There will be a great eruption on the surface of the sun in three years, and the resulting solar superstorm will destroy electronics on earth. It will fry satellites, cause generators to explode, and shut down communications networks.
The results will be cataclysmic. Much of the data now held on the cloud will be lost, including trillions of dollars of financial records. People's life savings will be wiped out, and only those with paper records will be able to reconstruct their finances. Businesses that rely on the Internet will crash, as, shortly afterwards, will businesses that rely on any electronics.
It will be a cold, dark, quiet world for months, and, in some places, years, while the world's ailing governments work to rebuild what was lost. And, even when they do, we will all live with the knowledge that it could happen again, and nothing can be done to stop it.