How many countries have regulations / laws involving the cryptocurrencies market?
There are several countries that have regulations or laws regarding the cryptocurrency market. Here is a list of some of them:

- Australia - The Australian government has proposed regulatory measures to regulate the digital currency industry, including setting up an Australian Financial Services Licence for cryptocurrency exchanges and introducing strict know-your-customer (KYC) and anti-money laundering requirements.
- Japan - In 2018, Japan passed a law requiring all Bitcoin transactions to be recorded on blockchain technology, which raised concerns about privacy and security. However, in 2019, the Japanese government relaxed its stance on cryptocurrencies, allowing domestic firms to enter the sector without applying for a license.
- South Korea - The Korean government has taken steps to regulate the cryptocurrency market, including setting up a central bank-like agency to oversee the industry and imposing taxes on large cryptocurrency investors.
- United States - The U.S. government has been actively pursuing regulations to govern the cryptocurrency market, with the most recent bill introduced by Senate Banking Committee Chairman Mike Crapo aiming to create a national licensing system for cryptocurrency exchanges. The bill also includes measures aimed at protecting consumers from fraudulent activities related to virtual currencies.
- China - While Chinese authorities have not officially banned cryptocurrencies, they have imposed restrictions on their use and circulation, particularly among individuals. The country's central bank has also urged caution around the risks associated with virtual currencies, while state media outlets have reported increased enforcement efforts targeting illegal cryptocurrency trading platforms.

It's worth noting that the legality and regulation of cryptocurrencies can vary depending on the jurisdiction, and compliance with local rules may be necessary for companies operating in the space.