An user ID (starts with “usr_”) should be displayed in the menu for preventing spoofing. It is more prefer that a button copying it be also provided. The present menu display a Display Name only.

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[Security] Create a character whitelist to prevent hiding usernames through unicode characters https://vrchat.canny.io/feature-requests/p/security-create-a-character-whitelist-to-prevent-hiding-usernames-through-unicod