The whole Google+ offers new services aimed at beating Facebook with them. However the returning question is privacy and security. We suggest 5 steps to follow to achieve a reasonable degree of security and privacy:
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1st: deactivate your account details from showing. No more emails from strangers. Use the gear symbol to deactivate your own account details.
2nd: deactivate your links distribution to your own circle only rather than allowing free forwarding-distribution. When your contacts would like to share your link with his/hers contacts this function would be deactivated.
3rd: informations in form of emails, texting (SMS) etc. from Google+ itself about links, people, etc. to be pushed to you.
4th: any coming data is to be secured by download and exporting to your backup. It would make your data complete and always available.
5th: if you get tired of Google+ or want to do something else, do delete your account, rather than simply abandoning it. You would remove a potential penetration port to your data.
Google+: 5 Tipps zum Schutz der Privatsphäre - PCtipp.ch - Praxis & Hilfe
