You need to chose a better one. The only things that keep about 50,000,000 people from using your account on the Internet is your username and password. So really the only protection is your password. Accessing the system. You can use a PC in the lab to telnet into the computer system.
Some systems have a menu set up.
On other systems you may need to select a telnet program. I recommend that if you call in from home use a terminal emulator that does a good VT-320 terminal emulation. You can telnet into the college from an external system connected to the Internet or through your own Internet service provider. Most web browsers let you make a telnet connection. You will need to tell the system who you are and then authenticate who you are.