Sgt_Kickaxe - 7:50 am on Feb 3, 2013 (gmt 0)
I've known Twitter wasn't secure for over two years now. How? Because I have a barely used account and about once a month I was seeing someone add themselves to my follow list, even though I never followed them. Every single time it happened their profile would show the little lock symbol so that anyone else following me could not see them.
I contacted twitter about it, no response.