1. Authentication in an Internet Banking Environment, Federal Financial Institutions Examination Council,
http://www.ffiec.gov/pdf/authentication_guidance.pdf
2. Wildstrom, Stephen: Securing Your PC: You’re on Your Own. Business Week, p. 26 (May 26, 2003)
3. Analysis & Review of FFIEC Multi-Factor Authentication Guidance, Data Risk Governance,
http://datariskgovernance.com/risk-assessment/multi-factor-authentication-in-banking/
4. Multifactor Authentication, Tevora Business Solution Blog,
http://blog.tevora.com/authentication/multifactor-authentication-2/
5. Gpayments, Two-Factor Authentication: An essential guide in the fight against Internet fraud (February 2006)