How to hide your Gmails from prying eyes
Google has confirmed that private Gmail messages can sometimes be read by staff at external companies.
Here is how to check your account permissions to see whether you are affected.
Note the qualifiers, Sometimes, and External Companies.
Remember, no matter what your settings, your email can/will always be read by Google!
Test it. Send a friend an email saying Aunt Flo passed away and give burial service details.
Then wait for the browser ads for Florists and Burial Services to er...pop up
Edit: duplicate posts cleared up