[slackoverflower]

There have been a good few of stories of people trying to get jobs, internships, client meetings with clever hack like this. I don't why this hit the front page.

Related to your story, it's either this person really wants to work for your company or you're part of a huge bigger list of employees whose company the person wants to work for. So the person might have just lumped your company with the others in the ad targeting set up.