- MFA / Multi Factor Authentication
- https://www.explainxkcd.com/wiki/index.php/936:_Password_Strengthhttps://www.explainxkcd.com/….
- http://howto.cnet.com/8301-11310_39-57431102-285/the-guide-to-password-security-and-why-you-should-care/http://howto.cnet.com/….
- http://www.wired.com/gadgetlab/2012/11/ff-mat-honan-password-hacker/all/http://www.wired.com/…./all
- http://www.healthypasswords.com/
- https://xkcd.com/936/
- Gerenciadores de Senhas
- https://www.linkedin.com/pulse/senhas-reinaldo-medeiros/https://www.linkedin.com/….
- http://rumkin.com/tools/password/passchk.php
- Senhas comprometidas
- Entropia
- Passwordless