QuoteThe privacy dangers of Google go beyond what Google knows about you -- you may have given dozens of sites access to your Google account information without realizing it. Here's how to conduct a security audit of your Google account, and how to take action to keep it safe.
How to conduct a security audit of your Google account | ITworld (http://www.itworld.com/security/405568/how-conduct-security-audit-your-google-account)
I carried out the audit and only 5 sites had permission for my data.... :Yahoo: I recognised all of them, but was surprised to see that sites like twitter and facebook get data from Google. May be I shouldn't be! I revoked permission on 4 of them... :virus: