Yesterday I logged in to LI after many months. Now, I've been around long enough to know not to give access to my GMail to anyone; so I've never done that. I al

Yesterday I logged in to LI after many months. Now, I've been around long enough to know not to give access to my GMail to anyone; so I've never done that. I also haven't installed the LI app on my iPhone. And yet, among the "people you may know", LI had a few email addresses that I am sure don't have LI accounts, and would never have them. So how did LI get those addresses? I was logged in to my GMail account in another tab; could it be some CSRF or such bug? I found it very creepy.