ALWAYS hilarious how people quickly bash MS but they will continue to use their products and just rip out half the pieces that keep things running smoothly.
http://www.zdnet.com/article/is-windows-10-telemetry-a-threat-to-your-personal-privacy/
There are many sins which turn users back to the previous versions, like automatic updates horrror wasting 10GB or more on the single 2.3GB major update if you stop for the moment paying attention to your data usage. There are intentionally obsfuscated options like a "metered connection" marketting bluff which let you think you are in control of your bill (which is not true), convenient assumption that LAN adapter interface Internet connection is completely unlimited - not giving an option to change to a metering type. The only connection with "metered connection" attribute turned 'on' is a RAS adapter, so Microsoft made it not functioning properly, deliberately, I think. Number of sins are growing upsetting more and more people, but there are also usability problems - completely unfinished Settings applet with conficting naming to the Control Panel items. This dual interface is confusing every user I know.
The articles like above are typically submitted by Microsoft's propaganda. I never trusted ZDNET Website which requires 10MB to load and carries straight away Microsoft propaganda material without any independent verification.
As far as I can tell, that "off switch" already exists, and when it's flipped to the correct position, I believe there's virtually no chance that Windows 10 telemetry information constitutes even a remote privacy issue.
'Off' switch is leaking, call a plummer, as is malfunctioning.
As for the last belief, the author must be very well informed, perhaps received full specification, formats, encryption keys for his PC, and did analyze most of packets for compliance. As far it is not verified, it represent a serious privacy threat.