There are different forms of digital currency. Bitcoin is not a currency; it is a financial instrument which creates major risks for investors because its value is highly unstable, not to mention the issues of tax evasion and criminal activity. This is not a monetary policy discussion.
Un-hedged foreign currency exposures (UFCE) of the corporates are a cause of concern as they pose risk to the individual corporates as also to the entire financial system. Guidelines on risk management of un-hedged exposures as also the methodology to be followed by banks for computing incremental provisioning and capital requirements for exposure to corporates having un-hedged foreign currency exposures have since been introduced.