Today's technology can easily harm people as they can be stalked, bullied, or "doxxed" through the use of the internet. These three have harmful effects on people, making them seek revenge. These aggressive and hateful online behaviors are common among teenagers and young adults who are using the social media.

According to the new study of the Hong Kong Polytechnic University, more than half of the secondary pupils in the city have had photos and personal data published on instant messaging apps and social media without their consent and knowledge - commonly known as "doxxing."

This practice usually tracks down personal details about others, circulating them on the internet to draw criticism and embarrass the victim. The main purpose of doxxing is to ruin the reputation of a person, and in worse cases, it can cause physical harm.

Experts believe online revenge is the most harmful behavior as it can be executed in front of a large audience across the globe. The rise of the modern technology also contributed to the habit among youths today as they tend to escape the real world and settle for the virtual one.

Psychologist Andrew Adler, the director of the Adler Family Centre, who is based in Hong Kong's Central district, said their addiction to posting on social media and communicating with each other online had a negative effect on their social well-being.

According to the South China Morning Post, there are other methods of cyberbullying, aside from doxxing. Some of these include spreading hurtful rumors on social media and in messaging groups; accessing smartphones, email, and social media accounts without permission; spying using GPS tracking, and flooding the recipient with a great number of texts and emails in a short time.

The other harmful behaviors are of two extremes; blocking or ignoring and stalking, which involves closely monitoring the victims and flooding them with unwanted messages.

"Stalking, like cyberbullying, seems to be an attempt to make another person frightened or develop low self-esteem. Ignoring is ceasing all communication with the victim. The motives behind ignoring the victims may be similar to those of cyberbullying and stalking, but sometimes they are used to end a friendship or romantic relationship," says Adler.

He points out that young people are engaging in cyberbullying as they can't control their anger and they manage it by taking it out on their peers. Their action prompted low self-esteem because they think they'll feel better about themselves when they make others experience the same negative feelings and anxiety.

"Teenagers seem to engage in different harmful internet behaviors for specific reasons. Although they may not always be aware of the dangers, the result may be serious psychological difficulties for the victims," says Adler.

Every victim reacts differently, depending on several factors like the victim's social and emotional stability and their social circle; their view of themselves and the harasser; and the type of harmful internet behavior. It should always be noted that the psychological effects of cyberbullying can be really serious.

"Many victims feel increased emotional distress, including frustration, anger and sadness. Others may experience decreased self-esteem, social isolation and withdrawal. When these issues become more serious, they can result in serious psychological and psychiatric problems such as depression, anxiety as well as suicidal thoughts," Adler explained.

He noted that both parents and schools should teach teenagers how to use the internet responsibly. Parents should also limit their children in accessing the technology and they should be a good role model to their kids. For instance, Adler explained, when coming home from work, parents should avoid going directly to their laptop or computer to answer emails or engage in casual browsing.

"Moreover, parents can help their teenagers develop interests and participate in activities that are as engaging and exciting as surfing the net. Finally, parents can let their teenagers know that they are always available to talk about anything, including issues related to the use of the internet. Schools can also educate students about the constructive use of the internet," he said.