The privacy offered by Monero is putting this cryptocurrency in trouble by raising more regulatory concerns among financial watchdogs.
The coin has a ring signature mechanism which enables signers to make a dissimilar and definite signature for a transaction. The secrecy addresses enable senders to generate one-time addresses that are only utilized when transferring Monero (XMR) coins to a receiver.
Source:
https://coinidol.com/monero-privacy-concerns/