Are you using the latest putty release? Some scary looking security fixes in the last few versions. http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.ht

Are you using the latest putty release? Some scary looking security fixes in the last few versions. http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.ht... and particularly http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-ech-overflow.html http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/v...