A global malvertising campaign is targeting porn site visitors from some 50 countries with demands for ransom to unblock their browser. Visitors from the US, Denmark, Australia, Romania, Germany, Spain, France, Finland, the Netherlands and some other 40 countries are being redirected to a fake web page that requests money to restore access to browser functionalities. The ad server is still up even though the ad network was allegedly notified. Users browsing adult sites like xHamster are redirected to the malicious website after accessing an ad for the Sex Messenger dating app.”]