Security experts in computer networks, they warn that there
may be other attacks around the world, when people are back at work tomorrow
.
It is estimated that more than 120 computers in 100 countries , were hacked on Friday.
But police say the European Union affected is 200,000 in 150 countries.
The attack has affected consumers as well as
government offices, main manufacturers of cars, banks and health care.
The attack prevent computer from access data, and demanding a ransom, to stop disturbing computers.
Analysis conducted by the BBC into account three digital currency, bitcoin, suggests attackers have paid a ransom more than 100 times, a total of around 30,000 dollars
source BBC Swahili