International Journal of Computer Applications
In this digital world all information and data is kept safe by passwords. The simple and convenient format of password is in the form of text. But, text passwords are not always strong enough and under different vulnerabilities they are very easily stolen and changed. When a person creates a weak password or same password is reused in many sites it may be possible that others can acquire that password. If one password is stolen, then it is possible that it can be used for all the websites. This phenomenon is known as the domino effect. Another possible risky attacks are related to phishing, malware and key loggers etc.