OKX Star: Anyone who can provide solid evidence proving the existence of a backdoor in OKX Wallet will be rewarded with 10 BTC. OKX founder and CEO Star posted: 'Anyone who can provide solid evidence proving the existence of a backdoor in OKX Wallet, our OKX Wallet team will reward 10 BTC. We invite tens of millions of OKX Wallet users worldwide to supervise together. Security and transparency are the bottom line, and we welcome community scrutiny.'