Coinspeaker ETH Network Turns 5, Vitalik Buterin Warns DeFi Users Are ‘Underestimating Smart Contract Risk’Ethereum went live five years ago changing the entire blockchain and crypto sector with developers envisioning a new form of money and social interactions and it has so far revolutionized the nascent industry.ETH Network Turns 5, Vitalik Buterin Warns DeFi Users Are ‘Underestimating Smart Contract Risk’