Phishing Popup on Mobile Site
I worked my way through it a bit to see what they were asking for, which eventually devolved into them asking me a few survey questions, and then wanting my email address so that they could send me my code for my "Free iPhone 6s!". Throughout the process, a fake Facebook commenting system displayed on one of the pages, to make it appear as though others were winning ones as well.
The entire thing was obviously a fake, and I would guess that it probably came via one of the ads displayed on the main SD homepage. I hadn't come across this before when viewing the site, so either I've been very lucky, or this malicious ad just got added to the rotation. If it matters any, the popup happened at around 8:30am-ish CST this morning.
A bit of extra info:
Phone: iPhone 6s, 64GB
OS Version: 9.2.1 (Build 13D20)
Note, there are no malicious apps installed on my phone to cause this either. I recently factory reset my phone, so there's not much more other than Google-related apps.