If this object is set to 'valid', the remainder
of the intruder objects contain information about
an authentication failure. The Security LED on
the device will blink if this flag is set to
'valid'. The intruder objects will not be
overwritten as long as this flag is set to
'valid'. Setting this flag to 'invalid' will turn
off the Security LED if there are no other
current violations, and will allow the intruder
objects to be overwritten by subsequent
authentication failures.