DDoS attacks on OKEx and Bitfinex might indeed be related: A closer look reveals that both of them sophisticated and large in scale
Source: https://cointelegraph.com/news/ddos-attacks-on-okex-and-bitfinex-were-sophisticated-possibly-related
DDoS Attacks on OKEx and Bitfinex Were Sophisticated, Possibly Related
March 3, 2020
CoinTelegraph