The Multiple 2-Factor System (M2FS) is the most recent implementation of our Secure Login System (SLS). The M2FS allows the smartphone based authentication and an additional physical security device to be simultaneously active for a given user. This schema offers you the convenience of the seamless authentication provided by the IBKR Mobile Authentication (IB Key) along with the higher withdrawal limits allowed by a physical security device. At the same time, the M2FS represents a fail-over solution, where one device can be used as a backup when the other is unavailable, has been misplaced or is malfunctioning.
Please Note
That the TWS is supporting the Multiple 2-Factor System (M2FS) starting from version 966. If you are using an older version of the TWS but you wish to benefit of the advantages of the M2FS, you would need to update your TWS. The most recent TWS installer packages can be found on our site.