You aren't scamming Netflix. You are being scammed.
If you want, I can:
Several "hot" or trending tools on GitHub offer features for bulk account validation: netflix account checker github hot
If you suspect an account checker has validated your credentials, use this nuclear option. It will invalidate all active tokens, forcing every device (including the hacker's) to log in again. Then, change your password before the attacker re-authenticates. You aren't scamming Netflix