A 1990 study of Unix password selection found similar results to Impervas study. The frequency with which people do reuse passwords was further highlighted, indirectly, by the Gawker attackers. One of the best guides to using strong passwords was published four years ago by Lifehacker. The first piece of advice? “Don’t use the same password for everything,” the first piece to advise. Perhaps the second should have been: Don’t be a peasant. The Web site users are first and foremost consumers.”]
Source: https://www.darkreading.com/attacks-breaches/schwartz-on-security-don-t-get-hacked-for-the-holidays