Why is there a $20 deposit for my security device?

While IB does not charge any fee for the use of the device, certain versions require that the account holder return the device upon account closing or incur a replacement fee. IB does not assess a replacement fee for the Digital Security Card+ unless a determination has been made that the device has been lost, stolen, damaged or not returned. A reserve equal to the fee will be placed upon the account upon issuance of the device to secure its return.  This reserve will have no effect upon the equity of the account available for trading, but will act as limit to full withdrawals or transfers until such time the device is returned (i.e., cannot withdraw the reserve balance).

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How can I request a replacement secure login device or temporary security code?
How can I select the device I want to login with?
May I request and obtain a second Digital Security Card+ as a backup device?
Can I see an estimated Exposure Fee in my TWS Account Window?