PayPal ($PYPL@US) will let British customers buy, hold and sell digital currencies, starting this week. PayPal is one of many firms leaping into the mostly unregulated world of cryptocurrencies. This move marks the first international expansion of PayPal’s crypto product, which first launched in the U.S. in October last year. Despite ongoing concerns about price volatility, consumer protection, and potential money laundering in the industry, major firms, including Mastercard ($MA@US), Tesla ($TSLA@US), and Facebook ($FB@US), have been warming to crypto lately. In April, the U.K. Treasury and Bank of England said they would evaluate the potential launch of a digital version of the British pound, dubbed “Britcoin” by the U.K. press.