Changing a password is ever made simple, if you know how to. If you are using Lovely Mail or Roundcube and you don't know how to change your password, that is for you. Change Password for your safety.
Why should you change password?
We have multiple password in our brain or in our pocket. When you do login a website, you have to set password and then you have to login. After some moment on other site, you have to fill up login and you have to login again.