Url changed from <a href="http:&#x2F;&#x2F;www.news.gatech.edu&#x2F;2016&#x2F;02&#x2F;22&#x2F;georgia-tech-discovers-how-mobile-ads-leak-personal-data" rel="nofollow">http:&#x2F;&#x2F;www.news.gatech.edu&#x2F;2016&#x2F;02&#x2F;22&#x2F;georgia-tech-discovers...</a>, which points to this.