My facebook profile has so little personal info in it, he managed to get my pic (Elmo from Sesame St) and a bunch of my friends’ names. The map it showed him looking at before getting in his car was of an entirely different city, and it didn’t show a house at all because there’s no way it could know exactly where I live.
Mine was creepy enough with pictures of my wife and toddler that I kind of wish I hadn’t tried it out.
I take comfort in the fact that all he could do was drive to the middle of Chicago, IL though. 
Erm, is entering your Facebook account and password on this Lollipop page a good idea?
I know the login window says it’s a secure https connection to facebook.com, but still.
Nah, that would be a terrible idea.
You don’t enter your login and password though, you authorize the app like most other facebook apps.
Also something you want to be careful with, but I checked out the lollipop thing wiht google searches first to make sure it was relatively legit.
ETA: If you’re not already logged in to facebook, you would have to do that of course. You can just do that on the normal facebook page though.
Take what you know of someone, maybe just their name, and Google it. Take any scrap of additional information you glean that way, and add that as a search term and google again. After 3-4 iterations, you will have whatever online tracks they left. If it is a common name, or one shared with someone famous put in minus terms to eliminate the obviously wrong people.
I once found someone knowing only their and their spouse’s first names and the city where they lived, I did not know the last name when I started.
The mentality displayed in the OP is a good example of the reason computer security is such a nightmare. Way too many people have this “Well, why worry about A since it would also take B and C … for anything bad to happen.”
Guess what. B and C happen all the time. Especially when the people in charge of B and C are thinking “What are the chances of A, etc. happening.”
You always assume that all the links in a security risk are in place and your decisions are the last link that someone can exploit.
(This is also needed in other areas such as engineering and safety.)
You’d be surprised how much information a knowledgeable person can learn about you by just knowing your first name, your date of birth, and the city/state you live in.
I know a guy who was hit head-on by a drunk speeding driver. He had his entire family with him, as they were going skiing. Fortunately his entire family survived, but all were badly hurt…fractures, concussions, internal injuries, etc.
There was an article about the tragedy in the local paper, so some low-lives burgled their house. When they were finally released from the hospital, not only did they go home to a burgled house, damaged due to broken window and open door during winter (hence the ski trip) but also faced the problem of every single member of the family being bed ridden, and no-one able to be a care-giver. They got some nurses and other domestic help, but the whole thing sucked way more than it had to.