Windows Vista: 6 Month Vulnerability Report
"I was somewhat surprised (but pleased) at the level of interest back when I published my Windows Vista - 90 Day Vulnerability Report. It was about the earliest span of time I thought might give us some indicators, and the indicators did look good. Six months is a much more interesting time frame, and gives us the opportunity to see if the early trend indicators are holding up, or if the early signs of progress were a short-term gain."