This is strange error I am getting while using google.com on chrome browser for any website | Test done on Feb 5 2015
OS: Windows 7 32bit
Your connection is not private Attackers might be trying to steal your information from gmail.com (for example, passwords, messages, or credit cards). ReloadAdvanced NET::ERR_CERT_AUTHORITY_INVALID .............. I could not find any solution on any forum or blogs.
Please mail if any body has solution