Former Tottenham Hotspur manager urges people to get involved with Electroneum in rare tweet firm says he was not paid for
Warnings about bitcoins and other cryptocurrencies are coming from all directions. The City watchdog has said the bitcoin industry is unregulated and investors could be wiped out. Jamie Dimon, the chief executive of JP Morgan, has called them a fraud and said the entire bitcoin system will blow up. Even Vladimir Putin, Russia’s president, has said cryptocurrencies are risky and used by criminals.