Wild price fluctuations, hackers, scams - add one more item to the list of risks for cryptocurrency investors: the possibility that a coin exchange executive unexpectedly dies, leaving the digital vault locked. A Canadian court appointed Ernst & Young as monitor for the cryptocurrency exchange QuadrigaCX on Tuesday, after the company sought protection from creditors following the death of its CEO. Gerald Cotten died in India late last year, at the age of 30, taking with him clients' access to almost $150m (about R2bn) in digital assets. According to statements from his wife, first reported by Bloomberg, Cotten took sole responsibility for the handling of exchange assets. Passwords were stored in an encrypted laptop to which he alone had access. This has left customers of the Vancouver-based exchange unable to reach $150m in bitcoin, litecoin and other cryptocurrencies. The personal keys that gave them access to their coins were stored in "cold wallets", encrypted hardware that is no...

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