A secure, private, and untraceable currency, Monero requires a group of cryptographic signatures with at least one real participant. Since they all appear valid, the real one cannot be isolated. Since it is untraceable, Monero is probably linked to criminal operations, but also become a funding source for uprisings in autocratic regimes.
Who is behind? Nicolas van Saberhagen
Monero Whitepaper (https://www.allcryptowhitepapers.com/monero-whitepaper/)