During a widespread AWS outage, supposedly-decentralized DeFi platform dYdX went down. dYdX is an Ethereum exchange that touts itself as the “world’s leading decentralized exchange”, and indeed it is estimated to be the fourth largest exchange. Whether it’s decentralized or not, however, is much more in question following the outage. Other major platforms (that are more known to run on centralized infrastructure) such as Binance and Coinbase were also affected by the AWS blip.