https://www.engadget.com/2017/11/07/code-mistake-freezes-280-million-in-digital-currency/
https://www.theguardian.com/technology/2017/nov/08/cryptocurrency-300m-dollars-stolen-bug-ether
https://thenextweb.com/cryptocurrency/2017/11/08/vitalik-buterin-parity-wallet-ethereum/
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