Security researchers from the NSA agency were already discuting about cryptocurrencies in 1996. You can find the paper in search engines, the title is "How to Make a Mint: the Cryptography of Anonymous Electronic Cash". It's very interesting to read it.
A cover from The Economist was the showing bitcoin with the illuminati pyramid with the eye

So it can be possible the banking system (or above the bank cartel) is behind cryptos. After all "One world, One government, One bank" is one of the motivation of the Elites, isn't?