Study: Trustwave 2012 Global Security Report
Date: February 9 2012

How long were the cracked passwords in corporate environments (n=2,521,248):

<1%	5 characters
1%	6 characters
4%	7 characters
57%	8 characters
18%	9 characters
11%	10 characters
5%	11 characters
3%	12 characters
1%	13 characters
1%	14 characters

PasswordResearch.com Comment:
These percentages were based on observation of a password length chart that did not allow precise estimates. Expect figures listed above to be inaccurate by up to +/- 2 percentage points. Shorter and longer passwords were also present in the graph, but accounted for a small percent of the overall total.