OKX Exchange overview -https://www.youtube.com/watch?v=Tg_dfnReVWA&t=529s OKX Exchange TOKENS— $OKB exchange token use worldwide — $OKC (OKT) Smart contracts Web 3.0 / NFT / Defi — https://www.youtube.com/watch?v=F10tiZAbXIM&t=426s OKX Exchange — How secure is OKX Exchange? Advanced Security and Cold wallets makes it very secure — https://www.youtube.com/watch?v=hPs9llGnEEg&t=4s Formerly OKEX, rebranding took place in…