I am on the Citizen's Advisory Council for the SFMTA. I also happen to be specialize in computer security! I have asked SFMTA staff to have this item put on a committee agenda so we can get a full post mortem of what happened. It will likely be a few months before we get any real details.<p>Since people are asking...<p>The ticket kiosks run Win2k, the subway display screens run Flash (on Win2k I imagine), and the SFMuniCentral display is DOS under OS/2. For the latter, it might be running Linux now. The subway system is in the middle of a major modernization project since SF is going to open a new subway line with new cars in the next 18 months.