China's central bank has announced that all transactions of crypto-currencies are illegal, effectively banning digital tokens such as Bitcoin, reports BBC. "Virtual currency-related business activities are illegal financial activities," the People's Bank of China said, warning it "seriously endangers the safety of people's assets". China is one of the world's largest crypto-currency markets. Fluctuations there often impact the global price of crypto-currencies. The price of Bitcoin fell by more than $2,000 (£1,460) in the wake of the Chinese announcement. It is the latest in China's national crackdown on what it sees as a volatile, speculative investment at best - and...