OKX founder Star: Cross-site UIDs should be globally unique or transfers based solely on UIDs should be prohibited.

on November 8, according to OKX founder Star, UIDs across different sites under the OKX brand must either maintain global uniqueness, or users must not be permitted to execute cross-site internal transfers solely based on their UID.

Star stated that a UID is an account identifier. If the same UID exists across different sites within the same brand yet allows cross-site transfers via UID, it could lead to incorrect recipient account identification and misdirected funds.