Although there are many possibilities to configure CQ WCM, certain actions should be taken, or at least reviewed immediately after installation:
For admin accounts change the default passwords to ensure your system is secure.
Read the remaining points on the security checklist for tasks required to ensure that your system remains secure.
Review the list of default users and groups which are installed with CQ WCM. Check whether you want to take action on any other accounts - see Security and User Administration for further details.