Final answer:
The phenomenon in question is cyberbullying, which encompasses harmful behaviors on social media that can include the sharing of personal content without consent.
Step-by-step explanation:
The question refers to the phenomenon of cyberbullying, an issue that affects many teenagers and young adults who engage with social media platforms. Cyberbullying encompasses a range of negative behaviors conducted through electronic means, including the sharing of personal or sensitive content without consent, or the posting of hurtful messages. Studies, such as one conducted by the U.S. Department of Education, have shown that a significant percentage of students have reported experiencing cyberbullying. It is important to be aware of the potential for cyberbullying as society's engagement with social media grows, as indicated by Pew Research Center findings on the prevalence of social media usage and concerns over personal data security.