- Central Bank of Brazil developed blockchain platform for data exchange between financial regulators - Samsung SDS launched online logistics platform for e-commerce - Bithumb, one of the world's largest cryptocurrency exchanges, was hacked and lost about $30 million in digital assets - John McAfee will no longer promote initial coin offerings … [Read more...] about Crypto news in brief (June 21, 2018): Brazil, Samsung, Bithumb, John McAfee