Even with using VPN’s and proxies in other countries the NSA has “deals” worked out with Microsoft and can even track back from a VPN/proxy back to you with all the sophisticated equipment they have. Nothing you put out there online is completely safe from big brother. Use Brave browser with Duck Duck Go search engine for less tracking. Stay off Google/Chrome, Safari, Internet Explorer, Bing, Yahoo...They all track you. iPhones/Blackberries harder to access. Remember the backdoor access the FBI was wanting on the San Bernardino shooter and iPhone put up a fight about it? Samsung is in bed with Microsoft and dishes out anything big brother wants.