Bitcoin slumped to a sixmonth low yesterday after China’s central bank launched a fresh crackdown on cryptocurrencies, warning of the risks entailed in issuing or trading them. Bitcoin, the world’s biggest cryptocurrency, fell 9 per cent to $6,929, its lowest since May, and was last down 7pc at $7,107. {"preview_thumbnail":"https://cdn.flowplayer.com/6684a05f-6468-4ecd-87d5-a748773282a3/i/v-i-2…","video_id":"2f074372-b3fa-4f9f-8191-57992d2241ce","player_id":"8ca46225-42a2-4245-9c20-7850ae937431","provider":"flowplayer","video":"10 Highest Average Cappuccino Prices Around the World"} The People’s Bank of China’s Shanghai headquarters said it would tackle growing cases ...