You don't have SSH installed. But to be honest you're better off installing SSH and changing the passwords. SSH is super useful for fixing problems that may arise with your phone, where the only alternative would be to restore every time.
Great point here,
For the records I don't have SSH installed on my personal phone, haven't really needed it, use Webserver on iFile and iPhone explorer to manage all my files. However I do use SSH everyday on my test phones and on my computers. However security is on the users hand and not on the system, you are pretty much vulnerable to real attack even if you don't have SSH. Quick example would be WiFi Sync, if an attacker have access to your network, they could use WiFi Sync protocol to exploit a vulnerability and get root access, execute a command to install SSH and boom, full control.
You just have to follow general rules, change passwords from defaults (even you dont have SSH intall, your default root password is alpine.
change password again every few months.
keep up with updates
don't install services you don't need
install only program that developer are known or at least they have so trackable record (like previous apps)
don't be afraid to delete what you are not using
get at lease a minimum understand how the program you installed work.
that's my long post of the day