Internet Delivered Therapy for Social Anxiety in Adults

The goal of this clinical trial is to learn if an internet-delivered CBT protocol for social anxiety in adults (PORTiSOFIE) is effective in Portugal. It will also learn about the impact that PORTiSOFIE may have on relationship dimensions of these individuals. The main questions it aims to answer are: Does PORTiSOFIE is effective? What impact PORTiSOFIE has in relationship dimensions? Participants will: Be assigned to experimental group and receive intervention briefly after screening is complete; Or control group and only receive intervention after the experimental group finishes.