Does IBKR Lite have the same account protection as IBKR Pro?

Yes, IBKR Lite has the same account protection as IBKR Pro accounts.

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Can I use cash amount for stock orders in an IBKR Lite account?
Can I have one account as IBKR Lite and one account as IBKR Pro with IBKR Singapore?
Can introducing brokers have both IBKR Lite and Pro clients?