I went through the article "How To See Who Logged Into a Computer and When" http://www.howtogeek.com/12431.....-and-when/ which I found great.
When I reviewed some of the log-ins most of them were me but there were a few called
"Security ID: NULL SID"
and "Security ID: ANONYMOUS LOGON".
What are these and should I be worried about them?
Help appreciated.


Posted 3 years ago