Governments are in fear of Bitcoin because they don't want to lose their control. People should stand their freedom to what they want to do and live their own lives. This post could be interesting to you:
https://steemit.com/bitcoin/@arvydas/breaking-news-the-organization-that-controls-the-development-of-the-bitcoin-software-warns-users-that-nation-state-actors-may
LOL. I don't think the NZ Government would be interested in a cyber attack but I can see potential for it in China
Every government in fear of lose of control will do anything to protect themselves, especially the great democracy of the world - USA.