Here's the original "account protection" wording in case anyone was wondering - bold text was removed sometime in the last few days.
"Customer securities accounts at Interactive Brokers are protected under SIPC up to $500,000 (with a cash sublimit of $250,000) and under Interactive Brokers' excess SIPC policy with Lloyd's of London insurers for up to an additional $30 million (with a cash sublimit of $900,000). Your stocks, options, warrants, debt instruments, and cash -- denominated in all currencies -- are covered by this protection. Futures, options on futures, and single stock futures are not covered , but available cash will be swept from your futures account to your securities account periodically to take advantage of SIPC and excess SIPC coverage to the greatest extent possible."