Just 4 days ago Google found up a critical hole in the shadow stack of ESET AV.
This touches all the ESET Anti-Virus Products. If a Google researcher can find this, a NSA re-engineer might have stumbled upon such a weakness earlier. In that case they sat on it and did not share the security implications with the world. This is just one example of how software could have been flawed to make monitoring an easier task. So privacy in a sense is non-existent as things might look cosy, hug and snug on the front-end, but one does not know what parties have access to data you might not want to share.

polonus