Quote from bestfriend:
Is IB requiring a token now? They have never contacted me about it or demanded I use one, despite high balances.
IB says:
"Interactive Brokers is offering our premier customers protection using a state of the art security system at no cost. "
I don't know how high a "high balance" must be to be a premier customer.
There is no charge for the program. However, they will earmark $150 that will be unavailable to you when you close your account until the token is returned.
Give customer service a call and ask about it.
Jack