[from http://churchm.ag/google-plus-privacy]
Google+ Plus was launched towards the end of June, and has reached over 10 million users who share 1 billion shares — per day!
Although Google+ Plus has inherently more security, there are a number of things you can do and keep in mind, to make sure you’re doing all that you can to maximize your privacy options.
Even if you have a, “let the world know†perspective, it’s still a good idea to understand just how Google+ Plus handles privacy.
1. Circles
If you’re not using Circles, you’re not using Google+. This is what sets Google+ apart from Facebook and other social networking tools. One you create your Circles, you can safely share information with specific circles of friends. Don’t worry, either, only you know who is placed in specific Circles.
2. Profile
Your profile on Google+ is defaulted to public. So, if you don’t want the entire world looking at your profile, you’ll want to change the settings so only those in your Circles can view it.
3. Search Visibility
Just like your profile, this option is set to public by default. Your profile will appear in Google search results. If you don’t want Google or any other search engine (is there any other?) indexing your profile, change this in your settings.
4. Lock Down
Here are a few privacy-related settings you may not notice:
Limit who can see who’s in your Circles.
Limit who can send you email.
Block users.
5. Select the Right Circle
Although Circles are Google+’s greatest strength, they could lead to some pretty foul screw-ups. When you create a new post, be sure you select the right Circles! It’s also good to keep in mind, that by default, Google+ will remember the Circles you selected in your most recent post, and will automatically select the same Circles used before.
6. Posts Can Go Public!
Whenever you comment on a friends’ post, their privacy settings may allow anyone to see their comments. So, when you comment, remember: It might be public!