It seems the Web of Trust plug-ins for Browser like Firefox, Chrome or Internet Explorer is in deep a spy software. There exists also apps for iPhone and Android phones. Here is a link... Code: https://www.kuketz-blog.de/wot-addon-wie-ein-browser-addon-seine-nutzer-ausspaeht/ ...which tells the complete story. Note: This link contains German language, because investigative journalists from the German Television magazines Panorama and Zapp did month-long a research about the Web of Trust add-on. Firefox, Google and other has removed the tool already and probably there will follow anywhere news stories about this in other countries. Useless to say, it make sense to switch off the WOT Browser add-on and/or the apps on iPhone and Android.