Hillary Clinton appears to have established multiple email addresses for her private use, and possibly the use of her aides, under the domain of “clintonemail.com,” according to a prominent member of the hacking community who supplied independent research data, conducted with high-tech tools, to Fox News. The hacker used an open-source tool, publicly available, called “The Harvester” to search a variety of data sources – including well-known platforms such as Google, Bing, LinkedIn, Twitter and others – for any stored references to email addresses seen using a particular domain, in this case clintonemail.com. Hackers working under contract for private firms,...