In Vietnam, the development of telecommunication infrastructure along with the popularity of personal communication devices has brought about significant changes in the way people communicate and build social networks, especially those of adolescence, not only in urban areas but also in rural and mountainous areas. Young people and ethnic minority communities are not excluded from the influence of the Internet in the digital age. The results of this study show that exposure to technology has both positive and negative effects. In addition to knowledge and convenience, cyberspace has many dangers that threaten young people when they themselves and those around them do not have enough experience to use the Internet safely. This practice requires intervention to increase the benefits and reduce risks for young people of ethnic minorities in Vietnam as the Internet is playing an increasingly important role in their lives.