If you have any interest in social engineering, here’s a nice infographic for you, courtesy of the folks at Social-Engineer.org.
Here are a few tidbits from those guys:
1. 90% of the people we ask will provide not just the spelling of their names but their email addresses without confirming our identity
2. 67% of the people we ask will give out social security numbers, birth dates or employee numbers
3. We have a 100% success ratio in physical breaches
I can only conclude that most of their victims are not very smart.