The attack is also said to have affected tens of thousands of organizations in Europe and Asia.

Fredrik Wallin, spokesperson for FRA, says that similar data breaches on a large scale can occur in Sweden.

- It absolutely can.

By hacking a company, the attacker gains access to very many other companies or authorities that they want to access.

So this is a bit of a trend for modern qualified IT attacks, says Fredrik Wallin.

Hear Fredrik Wallin explain more in the clip above