About three months ago I wrote a post to compare the two free threat modelling tools from Microsoft. And... well... both didn't win. The question is: do we have any alternatives?
There are some tools around. But most of them aren't any competition to the tools of Microsoft. Give them a try:
If these didn't fit your needs. Maybe have a look to what the future holds. These projects are still in planning or alpha state. Not downloadable yet, but who knows: