The proponent of SSM (Vitali) promised that SSM would include file protection by summer's end. It didn't happen, & he is unresponsive as to status queries. His replies to bug reports & technical questions are getting slower & slower. Also, it seems his forum replies are falling into the status of "cherry-picking" at times -- that is, answering easy questions & ignoring others. I'm still hoping for the best, but I won't renew until I see signs of actual progress.