OP, this has happened to me a couple times but it was a few years ago so I don't recall all the details. In the past few years I've been using a [link to www.godlikeproductions.com] that prevents me from seeing ads so I don't know if its still happening. I was a bit freaked out when it happened though!

But...

I'm not on Facebook or Twitter.

I don't have a smart phone or android phone, just a regular cell phone. And I keep the phone in a carry bag, not on my person.

I put tape over the camera on my laptop.


And I do believe they have the technology to do this and they're not telling us about it.