Indonesia's central bank has revealed that it is considering regulations that would outlaw bitcoin transactions from 2018.
A bill introduced in Missouri would make it illegal (in most cases) to track firearms using a blockchain-based platform.
The vice governor of the People's Bank of China has said that regulators took the right decision in banning ICOs and closing cryptocurrency exchanges.
The governor of the Bank of France has warned on the risks of investing in bitcoin, calling the cryptocurrency "speculative."
India's finance minister, Arun Jaitley, has said bitcoin is not legal tender in the country and indicated that regulations are under consideration.
The Trump administration has said it is keeping an eye on cryptocurrencies like bitcoin in the wake of its recent explosive price jumps.
Decentralized currencies could have "spillover effects" on the wider financial system if they get too big, Fed supervision chief Randal Quarles said.
European Central Bank board member Yves Mersch has said banks need to launch instant payments systems to counter the rise of cryptocurrencies.
The cryptocurrency community still has plenty of questions about taxation and regulation, especially as the ICO space heats up.
Prime Minister Lee Nak-yeon reportedly frets about kids selling drugs and pyramid schemes while regulators draft rules for South Korea's exchanges.