Over the internet, user profiling is one of the key activity in which user is asked to provide personal as well as professional information. The user is not aware about the misuse of profiling. It has been observed that user choose password from his/her profile unintentionally which create serious problem. The password has been taken from small domain which enables hackers to crack credentials by trying different fields of the user profile. To overcome this problem, proactive password checker is required which enforces password policies and prevents users from choosing easily guessable passwords. In this paper, we have introduced proactive password checking tool (Credential Proactive Protection Guard) based on user profiling which automatically check whether the given credential is safe or not and find the relationship between user profile and credentials. The focus of the current study is to check the level of association between different fields of user profile with credentials. The detailed technique, mechanism and tool of the proposed proactive password checker is also discussed in detail.