I was looking for a web site on my computer history and found a bunch of porn sights listed.I would like to find out when it happened.Is it possible that someone is tapping into my PC with wifi and it's possibly showing up in my PC history?

Hi, dreamchaserr!

Yes, it's possible that someone might be using your signal to access the Internet. As far as what you might be able to see concerning their activity, I don't know.

However, is there anyone else in your household who uses your computer, please?

Thanks!