Hackers steal nearly £31 million in Bitcoin from online exchange

  Hackers have stolen nearly £31 million in Bitcoin from Binance, one of the world’s largest cryptocurrency exchanges, its chief executive has said. Binance said hackers were able to withdraw 7,000 Bitcoin (£30.9m) in one transaction after using “a variety of techniques, including phishing, viruses and other attacks”. The Japan-based exchange’s chief executive Changpeng Zhao,…