Helping people with computers... one answer at a time.
Logs are showing a mysterious use of Facebook pages in the middle of the night. I'll give a few troubleshooting tips to track down the culprit!
My question is about security on Facebook. For the past few months, I've been downloading my Facebook archives and expanded archives. The expanded archives are showing logins to Facebook several times a week around 2:30 am, when I leave my desktop and laptop on. Login durations are between eight and 15 minutes and show my IP address. I'm meticulous about signing out of everything, and have very strong passwords, and the computers in the house are not networked. If I shut down the computers at night all week, and then download the archives, they show no logins. If it means anything, Firefox is set to delete all cookies when closed. I'm baffled. I'd appreciate your thoughts.
In this excerpt from Answercast #30, I look at a computer that seems to be accessing Facebook in the middle of the night. Tracking down the source will take some investigation.
I'll admit to being slightly baffled myself. The thing that comes to mind, (and I realize the details of what you describe doesn't quite match) but what comes to mind for me are other devices.
For example, here at home, I have my Android phone; I've got a couple of tablets; my wife has her Android phone and they're all set to connect via Wifi through my network. Therefore, they would all appear as logging into various servers with the same IP address as the computers I have here at home. If you have some kind of a Facebook application on some other device, that could possibly explain it.
Now, you said that this doesn't happen if you turn the computers off, which makes me think that it's not what I just described, but something clearly related to those computers. Just exactly what it would be I'm honestly not sure.
Malware comes to mind and is certainly something worth looking into.
I would also look into Facebook-specific browser add-ons: depending on what browser you're using – Firefox for sure. Perhaps there's an instance of the browser that's running. It might be doing something unexpected if you haven't completely logged out of Facebook, or if you have Facebook set to automatically login, or remember your password on those browsers.
The other thing that I would throw out is to perhaps use something like Process Explorer to see exactly what is running on your machine. See if perhaps there is some other Facebook-related utility running on your machine that's doing something related to Facebook that might cause it to login at around 2:30 in the morning.
This is also a case where it might be worth looking in the Event Viewer and see if there are any events that are happening around that time every night. That might give you a clue as to what kinds of things are going on at that time.
What I would focus on specifically is exactly what's going on at 2:30 in the
morning when this kind of Facebook access is happening. See, if there are any
clues that can provide.
Next from Answercast 30 Are viruses attached to my email after I send it?
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