(Origin: often thinking about one or two, not thinking about eight or nine PJ simple explanation: nbsp<imgsrc="static/image/smiley/default/titter.gif"smilieid="9"border="0"alt=""/>IN code Dividing the top 4 and the bottom 4, the top 4 only needs a maximum of 10,000 combinations, and the top 3 of the latter 4 only need a thousand combinations, which is a total of 11,000 password combinations. 10 to the 4th power + 10 to the 3rd power = 11,000 password combinations. When reaver determines the first 4-digit PIN password, its command progress value will jump directly to more than 90.9?which means that there are only a thousand password combinations left. Eleven thousand passwords in total!)