For those that may be worried about Evernote selling or mining their data for revenue and ad purposes, user data is not sold off nor will it be mined for the purpose of serving up ads according to Evernote. Evernote's revenue structure comes from memberships so they have no need to serve up advertisements, but they do state that user data can possibly be used for informing customers of features that they may potentially be interested in. Whether or not Evernote actually chooses to exercise that use of data is unclear, but chances are that if you get any emails from Evernote at all, it'll be about a new feature or a change to service in some way, like when they increased prices on their plans. While it might put you off that the new machine learning features within Evernote have prompted this change, there is an option to opt out of machine learning technologies, which can be accessed from account settings, so there is no requirement to use it which means you can prevent employees from seeing your data in the first place. It's also worth mentioning that these changes haven't been put into place yet and will be integrated as of January 23rd.