Bitdefender uses Active Virus Control, which monitors everything applications do as long as they are active, and according to their forum, they had HIPS-based feature back in 2009 but they opted to switch to cloud-based scanner. This is because hips requires advance user and using a cloud scanner will reduce the need for user input. In addition, I noticed the switch to cloud has reduce the pc resources it needed.
edit: there are setting for Active Virus Control to set it to advance for notification
I also have Malwarebyte and Hitman Po installed for backup and Bitdefender does a great job in for protection. I believe Comodo was the first to have website protection and Bitdefender caught onto the technology few months after.
I...