If you mean that it is possible to "blast satellites out of space", then yes, it is true. China used it on one of their own satellites to test with, and considering other nations were not informed, the US-government was outraged.

> if you mean that it is possible to "blast satellites out of space", then yes, it is true

No I meant the story about the hackers. No doubt about it that the nations could (and would) blast their satellites out of space. I wonder how these hackers can be so stupid to even think about such a crazy idea.