Reserve Bank Deputy Governor R Gandhi today raised concerns over virtual currencies such as Bitcoin and said they pose potential financial, legal, customer protection and security-related risks. He said such digital currencies are not created by any authority but more and more people have started accepting them.

"We can see that in these types of virtual currencies there is no central bank or monetary authority. They pose potential financial, operational, legal, customer protection and security-related risks," Gandhi said at a Fin Tech conference organised by Ficci, Indian Banks' Association and Nasscom.