Is cryptocurrency legal?

The legality of cryptocurrency depends largely on the country in which it is bought, sold and/or used. That is, not all countries or governments recognize cryptocurrency as a legal tender. A very limited number of countries have completely banned cryptocurrency. In the extreme case, counties such as China, even try to control their citizens who transact with cryptocurrencies while they are abroad. However, this is a quickly and ever-changing situation as countries continue to investigate the technology and update their rules and regulations. Most counties consider cryptocurrency legal, or they have made no decision at all yet (so it is not illegal).