Manjoo, F. (2009, July 24). Fix your terrible, insecure passwords in five minutes. Slate.
187
Nahamoo, D. (2011, December 19). IBM 5 in 5: Biometric data will be key to personal security [Web log message]. IBM Research. По данным сайта http://ibmresearchnews.blogspot.com/2011/12/ibm-5-in-5-biometric-data-will-be-key.html.
