"A common concern regarding cyberbullying is that strangers can attack someone, but here we see evidence that there are significant risks associated with close connections," said Diane Felmlee from Pennsylvania State University in the US.
The study found that the likelihood of cyberbullying - defined as electronic or online behaviour intended to harm another person psychologically or damage their reputation - was about seven times greater between current or former friends and dating partners than between young people who had neither been friends nor had dated.
"Friends, or former friends, are particularly likely to find themselves in situations in which they are vying for the same school, club, and/or sport positions and social connections," she said.
In terms of dating partners, young people often have resentful and hurt feelings as a result of a breakup, and they may take out these feelings on a former partner via cyber aggression.
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They might also believe they can win back a previous boyfriend or girlfriend, or prevent that person from breaking up with them or dating someone else, by embarrassing or harassing them, researchers said.
Researchers found that approximately 17.2 per cent of students had been involved with cyberbullying within a week of their having been surveyed - 5.8 per cent were purely victims, 9.1 per cent were solely aggressors, and 2.3 per cent were both.
In most cases, the cyber aggression occurred over Facebook or text message.
Researchers also found that certain types of students were much more likely than others to be victimised. For example, girls were twice as likely as boys to fall victim to cyber aggression.
The report found that parents are taking preventive
measures to ensure online security of their children. About 57 per cent parents said they check their child's browser history, while 46 per cent said they only allow access to certain websites.
About 35 per cent parents said they limit the information their child can post on social profiles.
Only 17 per cent of Indian parents report that their child was cyberbullied. While it may seem that cyberbullying is not a problem, but in reality, many parents don't recognise the signs of cyberbullying or don't report the incident for various reasons.
The global report includes inputs from 1,028 device users in India, including 593 parents.