Chamberlain... Which security level do you want? 7, 8, 9, 10, or 11 bits? Not sure how the situation is today, but the ones I'm referring to can be brute-forced

Chamberlain... Which security level do you want? 7, 8, 9, 10, or 11 bits? Not sure how the situation is today, but the ones I'm referring to can be brute-forced in a matter of minutes.