No, I log into the account from time to time, I haven't made a deposit for about two months, but everything is done through a dedicated IP, saving cookies, a clean operating system and a browser that I only use to access that account, so it's not a security problem.
Have you not withdrawn up to $1000 before? It could be what that caused it.
For anyone that do not want KYC exchange and they do not want an exchange to force them to get verified, such people should avoid OKX is what I think. OKX has gotten strict with KYC requirements. Documents are getting needed.