The phrase "extra protection" refers to additional measures or precautions taken to enhance safety, security, or prevention. It can be applied in various contexts such as physical, digital and emotional protection. For example, wearing a helmet while riding a bike provides extra protection against head injuries; installing an antivirus software on your computer offers extra protection from malware attacks; seeking therapy for mental health issues provides extra protection to one's well-being. The phrase highlights the importance of taking additional steps beyond regular measures, in order to ensure safety and security.