Key switch and security

[rbbb at RICE.ARPA]

From:  David Chase <rbbb at RICE.ARPA>

The key switch is a pretty bozo security mechanism, since

1) all old 11s (750 and older) use the same key.  I have one on my keyring.

2) I think that the new keys are also all alike, only made of plastic

3) There is a little switch on the back of the CPU that lets you do the
   same thing without keys.  You have to go through OFF to change it, but
   that's not much worse than rebooting.

drc