Both The Guardian and CNBC, are considered a reliable source by many. Their Experience and the time they have been active is huge, and as I said before; Unreliable sources don’t last much. Also, this article is backed up by other newspapers/news collectors. They also say where their info came from.
This article (both are about the same) describe what happened when the European Central Bank was hacked and the human impact it caused. This shows the insecurity of having a Central Bank as it is hackable and also it demonstrates why government shouldn’t have full acces to everyone.