bitdefender total security needs bitdefender credentials to be put in the devices ( other than the account holder's device ) which is a great security risk. if the link has been sent from the bitdefender central account to someone's device , the security solution should not need the credentials. i ve bought 10 licenses but ve not been able to use more than 2 because of this security threat. asked several times on chat/e-mail helpline to add this feature but it was not done.